Connect-AzAccount works through powershell but not when called by C# application running in VS2022

### Description

I have a windows forms application that we migrated to .NET 9 so that Microsoft.Powershell.SDK will run Powershell 7 instead of Powershell 5 due to issues we were facing with Connect-AzAccount in PowerShell 5. From Powershell 7, I can run Connect-AzAccount with no issue, but when I execute the command vai a PowerShell object in C#, the interactive browser login does not open, and I get a Method not found error for Azure.Identity,InteractiveBrowserCredential.AuthenticateAsync.

I have tried disabling WAM, turning off the V2 Login Experience and connecting using a service account:

```powershell
#Update-AzConfig -EnableLoginByWam $false
#Update-AzConfig -LoginExperienceV2 Off
```

Connecting using a service account - this returned an "Entry point not found" error and seems to be using a different API call than when I run it directly in Powershell v7
- From C#

```
Request [413f8576-e5b0-453a-aa24-88428e8b4475] GET https://login.microsoftonline.com/common/discovery/instance?api-version=1.1&authorization_endpoint=REDACTED
x-client-SKU:REDACTED
x-client-Ver:REDACTED
x-client-OS:REDACTED
client-request-id:REDACTED
return-client-request-id:REDACTED
x-ms-client-request-id:413f8576-e5b0-453a-aa24-88428e8b4475
x-ms-return-client-request-id:true
User-Agent:azsdk-net-Identity/1.13.0 (.NET 9.0.3; Microsoft Windows 10.0.14393)
client assembly: Azure.Identity"
```

- From Powershell
```
Request [32df3b28-8fc5-4651-81cc-23acb0231378] POST https://login.microsoftonline.com/zzzzzzzzz-zzzz-zzzz-zzzz-zzzzzzzzzzzzz/oauth2/v2.0/token
x-client-SKU:REDACTED
x-client-Ver:REDACTED
x-client-OS:REDACTED
x-client-current-telemetry:REDACTED
x-ms-PKeyAuth:REDACTED
x-ms-lib-capability:REDACTED
client-request-id:REDACTED
return-client-request-id:REDACTED
Content-Type:application/x-www-form-urlencoded
x-ms-client-request-id:32df3b28-8fc5-4651-81cc-23acb0231378
x-ms-return-client-request-id:true
User-Agent:azsdk-net-Identity/1.13.0 (.NET 9.0.1; Microsoft Windows 10.0.14393)
client assembly: Azure.Identity
```

### Issue script & Debug output

```PowerShell
$DebugPreference = 'Continue'
Clear-AzContext -Force
Connect-AzAccount

DebugRecord.Message
Initializing ConditionalAssemblyContext. PSEdition is [Core]. PSVersion is [7.5.0].
Initializing ConditionalAssemblyProvider. AssemblyRootPath is [C:\Users\user\Documents\PowerShell\Modules\Az.Accounts\4.0.2\StartupScripts\..\lib].
Registering Az shared AssemblyLoadContext.
AssemblyLoadContext registered.
Initializing PSStyle.
1:04:27 PM - [ConfigManager] Got nothing from [DisplaySecretsWarning], Module = [], Cmdlet = []. Returning default value [True].
1:04:27 PM - ClearAzureRmContext begin processing with ParameterSet '__AllParameterSets'.
1:04:27 PM - [ConfigManager] Got nothing from [DisplayBreakingChangeWarning], Module = [Az.Accounts], Cmdlet = [Clear-AzContext]. Returning default value [True].
1:04:27 PM - Autosave setting from startup session: 'CurrentUser'
1:04:27 PM - No autosave setting detected in environment variable 'AzContextAutoSave'.
1:04:27 PM - Using Autosave scope 'CurrentUser'
1:04:27 PM - Autosave setting from startup session: 'CurrentUser'
1:04:27 PM - No autosave setting detected in environment variable 'AzContextAutoSave'.
1:04:27 PM - Using Autosave scope 'CurrentUser'
1:04:27 PM - [ConfigManager] Got nothing from [DisplayRegionIdentified], Module = [], Cmdlet = []. Returning default value [True].
1:04:27 PM - [ConfigManager] Got nothing from [CheckForUpgrade], Module = [], Cmdlet = []. Returning default value [True].
AzureQoSEvent: Module: Az.Accounts:4.0.2; CommandName: Clear-AzContext; PSVersion: 7.5.0; IsSuccess: True; Duration: 00:00:00.0223064; SanitizeDuration: 00:00:00
1:04:27 PM - [ConfigManager] Got nothing from [EnableDataCollection], Module = [], Cmdlet = []. Returning default value [True].
1:04:27 PM - ClearAzureRmContext end processing.
1:04:27 PM - [ConfigManager] Got nothing from [DisplaySecretsWarning], Module = [], Cmdlet = []. Returning default value [True].
1:04:27 PM - ConnectAzureRmAccountCommand begin processing with ParameterSet 'UserWithSubscriptionId'.
1:04:27 PM - [ConfigManager] Got nothing from [DisplayBreakingChangeWarning], Module = [Az.Accounts], Cmdlet = [Connect-AzAccount]. Returning default value [True].
1:04:27 PM - [ConfigManager] Got nothing from [DefaultSubscriptionForLogin], Module = [], Cmdlet = []. Returning default value [].
1:04:27 PM - Autosave setting from startup session: 'CurrentUser'
1:04:27 PM - No autosave setting detected in environment variable 'AzContextAutoSave'.
1:04:27 PM - Using Autosave scope 'CurrentUser'
"1:04:27 PM - Unable to acquire token for tenant 'organizations' with error 'System.MissingMethodException: Method not found: 'System.Threading.Tasks.Task`1 Azure.Identity.InteractiveBrowserCredential.AuthenticateAsync(Azure.Core.TokenRequestContext, System.Threading.CancellationToken)'.
at Microsoft.Azure.PowerShell.Authenticators.InteractiveWamAuthenticator.Authenticate(AuthenticationParameters parameters, CancellationToken cancellationToken)
at Microsoft.Azure.Commands.Common.Authentication.DelegatingAuthenticator.TryAuthenticate(AuthenticationParameters parameters, CancellationToken cancellationToken, Task`1& token)
at Microsoft.Azure.Commands.Common.Authentication.DelegatingAuthenticator.TryAuthenticate(AuthenticationParameters parameters, Task`1& token)
at Microsoft.Azure.Commands.Common.Authentication.Factories.AuthenticationFactory.Authenticate(IAzureAccount account, IAzureEnvironment environment, String tenant, SecureString password, String promptBehavior, Action`1 promptAction, IAzureTokenCache tokenCache, String resourceId)
at Microsoft.Azure.Commands.ResourceManager.Common.RMProfileClient.AcquireAccessToken(IAzureAccount account, IAzureEnvironment environment, String tenantId, SecureString password, String promptBehavior, Action`1 promptAction, String resourceId)
at Microsoft.Azure.Commands.ResourceManager.Common.RMProfileClient.ListAccountTenants(IAzureAccount account, IAzureEnvironment environment, SecureString password, String promptBehavior, Action`1 promptAction)'"
1:04:27 PM - [ConfigManager] Got nothing from [EnableErrorRecordsPersistence], Module = [Az.Accounts], Cmdlet = [Connect-AzAccount]. Returning default value [False].
1:04:27 PM - [ConfigManager] Got nothing from [DisplayBreakingChangeWarning], Module = [Az.Accounts], Cmdlet = [Connect-AzAccount]. Returning default value [True].
1:04:27 PM - [ConfigManager] Got nothing from [LoginExperienceV2], Module = [], Cmdlet = []. Returning default value [On].
1:04:27 PM - [ConfigManager] Got [True] from [EnableLoginByWam], Module = [], Cmdlet = [].
1:04:27 PM - [ConfigManager] Got nothing from [DisplayRegionIdentified], Module = [], Cmdlet = []. Returning default value [True].
1:04:27 PM - [ConfigManager] Got nothing from [CheckForUpgrade], Module = [], Cmdlet = []. Returning default value [True].
AzureQoSEvent: Module: Az.Accounts:4.0.2; CommandName: Connect-AzAccount; PSVersion: 7.5.0; IsSuccess: False; Duration: 00:00:00.0053855; SanitizeDuration: 00:00:00; Exception: Method not found: 'System.Threading.Tasks.Task`1 Azure.Identity.InteractiveBrowserCredential.AuthenticateAsync(Azure.Core.TokenRequestContext, System.Threading.CancellationToken)'.;
1:04:27 PM - [ConfigManager] Got nothing from [EnableDataCollection], Module = [], Cmdlet = []. Returning default value [True].
1:04:27 PM - ConnectAzureRmAccountCommand end processing.
```

### Environment data

```PowerShell
Name Value
---- -----
PSVersion 7.5.0
PSEdition Core
GitCommitId 7.5.0
OS Microsoft Windows 10.0.14393
Platform Win32NT
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
WSManStackVersion 3.0
```

### Module versions

```PowerShell
ModuleType Version PreRelease Name ExportedCommands
---------- ------- ---------- ---- ----------------
Script 4.0.2 Az.Accounts {Add-AzEnvironment, Clear-AzConfig, Clear-AzConte…

PS C:\Windows\System32> get-Module -ListAvailable | Where-Object {$_.Name -like "Az*"}

Directory: C:\Users\user\Documents\PowerShell\Modules

ModuleType Version PreRelease Name PSEdition ExportedCommands
---------- ------- ---------- ---- --------- ----------------
Script 13.3.0 Az Core,Desk
Script 4.0.2 Az.Accounts Core,Desk {Disable-AzDataCollection, Disable-AzCo…
Script 4.0.0 Az.Accounts Core,Desk {Disable-AzDataCollection, Disable-AzCo…

Directory: C:\Program Files\WindowsPowerShell\Modules

ModuleType Version PreRelease Name PSEdition ExportedCommands
---------- ------- ---------- ---- --------- ----------------
Script 2.1.0 Az.Advisor Core,Desk {Disable-AzAdvisorRecommendation, Enabl…
Script 6.1.0 Az.Aks Core,Desk {Disable-AzAksAddOn, Enable-AzAksAddOn,…
Script 1.2.0 Az.AnalysisServices Core,Desk {Add-AzAnalysisServicesAccount, Export-…
Script 4.1.0 Az.ApiManagement Core,Desk {Add-AzApiManagementApiToGateway, Add-A…
Script 2.0.1 Az.App Core,Desk {Disable-AzContainerAppRevision, Enable…
Script 1.4.0 Az.AppConfiguration Core,Desk {Clear-AzAppConfigurationDeletedStore, …
Script 2.3.0 Az.ApplicationInsights Core,Desk {Get-AzApplicationInsights, Get-AzAppli…
Script 1.1.0 Az.ArcResourceBridge Core,Desk {Get-AzArcResourceBridge, Get-AzArcReso…
Script 2.1.0 Az.Attestation Core,Desk {Add-AzAttestationPolicySigner, Get-AzA…
Script 1.1.0 Az.Automanage Core,Desk {Get-AzAutomanageBestPractice, Get-AzAu…
Script 1.11.1 Az.Automation Core,Desk {Export-AzAutomationDscConfiguration, E…
Script 3.7.0 Az.Batch Core,Desk {Disable-AzBatchAutoScale, Disable-AzBa…
Script 2.2.0 Az.Billing Core,Desk {Get-AzBillingAccount, Get-AzBillingInv…
Script 3.3.0 Az.Cdn Core,Desk {Clear-AzCdnEndpointContent, Clear-AzFr…
Script 2.1.0 Az.CloudService Core,Desk {Get-AzCloudService, Get-AzCloudService…
Script 1.15.0 Az.CognitiveServices Core,Desk {Add-AzCognitiveServicesAccountNetworkR…
Script 9.1.0 Az.Compute Core,Desk {Add-AzImageDataDisk, Add-AzVhd, Add-Az…
Script 1.1.0 Az.ConfidentialLedger Core,Desk {Get-AzConfidentialLedger, New-AzConfid…
Script 1.1.1 Az.ConnectedMachine Core,Desk {Connect-AzConnectedMachine, Get-AzConn…
Script 4.1.1 Az.ContainerInstance Core,Desk {Add-AzContainerInstanceOutput, Get-AzC…
Script 4.3.0 Az.ContainerRegistry Core,Desk {Connect-AzContainerRegistry, Get-AzCon…
Script 1.17.0 Az.CosmosDB Core,Desk {Get-AzCosmosDBAccount, Get-AzCosmosDBA…
Script 1.2.1 Az.DataBoxEdge Core,Desk {Get-AzDataBoxEdgeBandwidthSchedule, Ge…
Script 1.10.0 Az.Databricks Core,Desk {Get-AzDatabricksAccessConnector, Get-A…
Script 1.19.1 Az.DataFactory Core,Desk {Add-AzDataFactoryV2DataFlowDebugSessio…
Script 1.1.0 Az.DataLakeAnalytics Core,Desk {Add-AzDataLakeAnalyticsDataSource, Add…
Script 1.4.0 Az.DataLakeStore Core,Desk {Add-AzDataLakeStoreFirewallRule, Add-A…
Script 2.6.1 Az.DataProtection Core,Desk {Backup-AzDataProtectionBackupInstanceA…
Script 1.1.1 Az.DataShare Core,Desk {Get-AzDataShare, Get-AzDataShareAccoun…
Script 5.4.1 Az.DesktopVirtualization Core,Desk {Disconnect-AzWvdUserSession, Expand-Az…
Script 2.0.1 Az.DevCenter Core,Desk {Connect-AzDevCenterAdminCatalog, Conne…
Script 1.1.0 Az.DevTestLabs Core,Desk {Get-AzDtlAllowedVMSizesPolicy, Get-AzD…
Script 1.3.1 Az.Dns Core,Desk {Add-AzDnsRecordConfig, Get-AzDnsRecord…
Script 1.1.1 Az.DnsResolver Core,Desk {Get-AzDnsForwardingRuleset, Get-AzDnsF…
Script 1.2.1 Az.ElasticSan Core,Desk {Add-AzElasticSanVolumeGroupNetworkRule…
Script 2.2.0 Az.EventGrid Core,Desk {Disable-AzEventGridPartnerTopic, Enabl…
Script 5.2.0 Az.EventHub Core,Desk {New-AzEventHubAuthorizationRuleSASToke…
Script 1.12.0 Az.FrontDoor Core,Desk {Disable-AzFrontDoorCustomDomainHttps, …
Script 4.2.0 Az.Functions Core,Desk {Get-AzFunctionApp, Get-AzFunctionAppAv…
Script 6.3.1 Az.HDInsight Core,Desk {Add-AzHDInsightClusterIdentity, Add-Az…
Script 2.1.0 Az.HealthcareApis Core,Desk {Get-AzHealthcareApisService, Get-AzHea…
Script 1.0.0 Az.HealthDataAIServices Core,Desk {Get-AzDeidService, New-AzDeidService, …
Script 2.8.0 Az.IotHub Core,Desk {Add-AzIotHubCertificate, Add-AzIotHubC…
Script 6.3.1 Az.KeyVault Core,Desk {Add-AzKeyVaultCertificate, Add-AzKeyVa…
Script 2.4.0 Az.Kusto Core,Desk {Add-AzKustoClusterCalloutPolicy, Add-A…
Script 1.1.0 Az.LoadTesting Core,Desk {Get-AzLoad, New-AzLoad, Remove-AzLoad,…
Script 1.6.0 Az.LogicApp Core,Desk {Get-AzIntegrationAccount, Get-AzIntegr…
Script 1.2.0 Az.MachineLearning Core,Desk {Add-AzMlWebServiceRegionalProperty, Ex…
Script 1.2.0 Az.MachineLearningServices Core,Desk {Get-AzMLServiceQuota, Get-AzMLServiceU…
Script 1.5.1 Az.Maintenance Core,Desk {Get-AzApplyUpdate, Get-AzConfiguration…
Script 1.3.0 Az.ManagedServiceIdentity Core,Desk {Get-AzFederatedIdentityCredential, Get…
Script 3.1.0 Az.ManagedServices Core,Desk {Get-AzManagedServicesAssignment, Get-A…
Script 2.1.0 Az.MarketplaceOrdering Core,Desk {Get-AzMarketplaceTerms, Invoke-AzMarke…
Script 1.2.0 Az.Media Core,Desk {Get-AzMediaService, Get-AzMediaService…
Script 2.7.0 Az.Migrate Core,Desk {Get-AzMigrateDiscoveredServer, Get-AzM…
Script 6.0.1 Az.Monitor Core,Desk {Add-AzLogProfile, Add-AzMetricAlertRul…
Script 1.3.0 Az.MySql Core,Desk {Get-AzMySqlConfiguration, Get-AzMySqlC…
Script 7.14.0 Az.Network Core,Desk {Add-AzApplicationGatewayAuthentication…
Script 1.1.0 Az.NetworkCloud Core,Desk {Deploy-AzNetworkCloudCluster, Disable-…
Script 1.2.0 Az.Nginx Core,Desk {Get-AzNginxCertificate, Get-AzNginxCon…
Script 1.2.0 Az.NotificationHubs Core,Desk {Get-AzNotificationHub, Get-AzNotificat…
Script 3.3.0 Az.OperationalInsights Core,Desk {Disable-AzOperationalInsightsIISLogCol…
Script 1.1.0 Az.Oracle Core,Desk {Add-AzOracleCloudVMClusterVM, Get-AzOr…
Script 1.7.1 Az.PolicyInsights Core,Desk {Get-AzPolicyAttestation, Get-AzPolicyE…
Script 1.2.0 Az.PostgreSql Core,Desk {Get-AzPostgreSqlConfiguration, Get-AzP…
Script 2.1.0 Az.PowerBIEmbedded Core,Desk {Get-AzPowerBIEmbeddedCapacity, New-AzP…
Script 1.2.0 Az.PrivateDns Core,Desk {Add-AzPrivateDnsRecordConfig, Get-AzPr…
Script 7.5.1 Az.RecoveryServices Core,Desk {Add-AzRecoveryServicesAsrReplicationPr…
Script 1.11.0 Az.RedisCache Core,Desk {Export-AzRedisCache, Get-AzRedisCache,…
Script 1.4.1 Az.RedisEnterpriseCache Core,Desk {Export-AzRedisEnterpriseCache, Get-AzR…
Script 2.1.0 Az.Relay Core,Desk {Get-AzRelayAuthorizationRule, Get-AzRe…
Script 1.2.0 Az.ResourceGraph Core,Desk {Search-AzGraph, Get-AzResourceGraphQue…
Script 1.3.0 Az.ResourceMover Core,Desk {Add-AzResourceMoverMoveResource, Get-A…
Script 7.9.0 Az.Resources Core,Desk {Export-AzResourceGroup, Export-AzTempl…
Script 1.8.0 Az.Security Core,Desk {Add-AzSecurityAdaptiveNetworkHardening…
Script 3.2.0 Az.SecurityInsights Core,Desk {Get-AzSentinelAlertRule, Get-AzSentine…
Script 4.1.1 Az.ServiceBus Core,Desk {New-AzServiceBusAuthorizationRuleSASTo…
Script 3.5.0 Az.ServiceFabric Core,Desk {Add-AzServiceFabricClientCertificate, …
Script 2.1.0 Az.SignalR Core,Desk {Get-AzSignalR, Get-AzSignalRKey, Get-A…
Script 6.0.2 Az.Sql Core,Desk {Add-AzSqlDatabaseToFailoverGroup, Add-…
Script 2.4.0 Az.SqlVirtualMachine Core,Desk {Assert-AzSqlVMEntraAuth, Get-AzAvailab…
Script 2.5.0 Az.StackHCI Core,Desk {Add-AzStackHCIVMAttestation, Disable-A…
Script 1.1.0 Az.StackHCIVM Core,Desk {Add-AzStackHCIVMVirtualMachineDataDisk…
Script 8.2.0 Az.Storage Core,Desk {Add-AzRmStorageContainerLegalHold, Add…
Script 1.5.0 Az.StorageMover Core,Desk {Get-AzStorageMover, Get-AzStorageMover…
Script 2.4.1 Az.StorageSync Core,Desk {Get-AzStorageSyncCloudEndpoint, Get-Az…
Script 2.1.0 Az.StreamAnalytics Core,Desk {Get-AzStreamAnalyticsCluster, Get-AzSt…
Script 2.1.0 Az.Support Core,Desk {Get-AzSupportChatTranscript, Get-AzSup…
Script 3.1.2 Az.Synapse Core,Desk {Add-AzSynapseDataFlowDebugSessionPacka…
Script 1.3.0 Az.TrafficManager Core,Desk {Add-AzTrafficManagerCustomHeaderToEndp…
Script 3.3.1 Az.Websites Core,Desk {Add-AzWebAppAccessRestrictionRule, Add…
Script 1.0.0 Az.Workloads Core,Desk {Get-AzWorkloadsMonitor, Get-AzWorkload…
Script 4.2.1 Azure.Storage Desk {Get-AzureStorageTable, New-AzureStorag…
```

### Error output

```PowerShell
Method not found: 'System.Threading.Tasks.Task`1 Azure.Identity.InteractiveBrowserCredential.AuthenticateAsync(Azure.Core.TokenRequestContext, System.Threading.CancellationToken)'.
at Microsoft.Azure.PowerShell.Authenticators.InteractiveWamAuthenticator.Authenticate(AuthenticationParameters parameters, CancellationToken cancellationToken)
at Microsoft.Azure.Commands.Common.Authentication.DelegatingAuthenticator.TryAuthenticate(AuthenticationParameters parameters, CancellationToken cancellationToken, Task`1& token)
at Microsoft.Azure.Commands.Common.Authentication.DelegatingAuthenticator.TryAuthenticate(AuthenticationParameters parameters, Task`1& token)
at Microsoft.Azure.Commands.Common.Authentication.Factories.AuthenticationFactory.Authenticate(IAzureAccount account, IAzureEnvironment environment, String tenant, SecureString password, String promptBehavior, Action`1 promptAction, IAzureTokenCache tokenCache, String resourceId)
at Microsoft.Azure.Commands.ResourceManager.Common.RMProfileClient.AcquireAccessToken(IAzureAccount account, IAzureEnvironment environment, String tenantId, SecureString password, String promptBehavior, Action`1 promptAction, String resourceId)
at Microsoft.Azure.Commands.ResourceManager.Common.RMProfileClient.ListAccountTenants(IAzureAccount account, IAzureEnvironment environment, SecureString password, String promptBehavior, Action`1 promptAction)
at Microsoft.Azure.Commands.ResourceManager.Common.RMProfileClient.Login(IAzureAccount account, IAzureEnvironment environment, String tenantIdOrName, String subscriptionId, String subscriptionName, SecureString password, Boolean skipValidation, IOpenIDConfiguration openIDConfigDoc, Action`1 promptAction, String name, Boolean shouldPopulateContextList, Int32 maxContextPopulation, String authScope, Boolean IsInteractiveContextSelectionEnabled)
at Microsoft.Azure.Commands.Profile.ConnectAzureRmAccountCommand.<>c__DisplayClass134_2.b__7()
at System.Threading.Tasks.Task`1.InnerInvoke()
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
--- End of stack trace from previous location ---
at Microsoft.Azure.Commands.Profile.ConnectAzureRmAccountCommand.<>c__DisplayClass134_1.b__1(AzureRmProfile localProfile, RMProfileClient profileClient, String name)
at Microsoft.Azure.Commands.Profile.ConnectAzureRmAccountCommand.<>c__DisplayClass150_0.b__0(AzureRmProfile prof, RMProfileClient client)
at Microsoft.Azure.Commands.Profile.Common.AzureContextModificationCmdlet.ModifyContext(Action`2 contextAction)
at Microsoft.Azure.Commands.Profile.ConnectAzureRmAccountCommand.SetContextWithOverwritePrompt(Action`3 setContextAction)
at Microsoft.Azure.Commands.Profile.ConnectAzureRmAccountCommand.ExecuteCmdlet()
at Microsoft.WindowsAzure.Commands.Utilities.Common.CmdletExtensions.<>c__3`1.b__3_0(T c)
at Microsoft.WindowsAzure.Commands.Utilities.Common.CmdletExtensions.ExecuteSynchronouslyOrAsJob[T](T cmdlet, Action`1 executor)
at Microsoft.WindowsAzure.Commands.Utilities.Common.CmdletExtensions.ExecuteSynchronouslyOrAsJob[T](T cmdlet)
at Microsoft.WindowsAzure.Commands.Utilities.Common.AzurePSCmdlet.ProcessRecord()
```

Start by reproducing Connect-AzAccount from the C# host using Microsoft.Powershell.SDK, Az.Accounts 4.0.2, and the reported .NET 9 environment, then compare it with standalone PowerShell 7. Check the reported Azure.Identity InteractiveBrowserCredential.AuthenticateAsync MissingMethodException and the service-account entry-point error. Done means authentication works from the host without these errors and the interactive browser login opens.

Written by the indexing model from the issue text.