GetAvailableBrowserVersionString with fixed version deployment fails on Windows Server 2012R2

Description
During application startup we call GetAvailableBrowserVersionString using a relative path (e.g. path/to/runtime) to a folder containing the fixed runtime. On Windows Server 2012 R2 the call throws the error that I've included below. The error does not occur on Windows 10 or Windows 7. The error also never occurred with the previous runtime (runtime 94.0.992.31, sdk 1.0.902.49). I have not yet tested whether it will still run since our application exits if it doesn't think a valid runtime is available.

System.Runtime.InteropServices.COMException (0x80070032): The request is not supported. (Exception from HRESULT: 0x80070032)
   at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
   at Microsoft.Web.WebView2.Core.CoreWebView2Environment.GetAvailableBrowserVersionString(String browserExecutableFolder)

Version
SDK: 1.0.1054.31
Runtime: 96.0.1054.43 x86 (from Microsoft.WebView2.FixedVersionRuntime.96.0.1054.43.x86.cab)
Framework: WPF (targeting .NET 4.6.1)
OS: Microsoft Windows Server 2012 R2 Standard, Version: 6.3.9600 Build 9600. Running on EC2. (.NET 4.8 release 528049)

Repro Steps
On Windows 2012 R2, call GetAvailableBrowserVersionString pointed at a folder containing fixed runtime 96.0.1054.43 x86.
Should return the available runtime, instead throws exception.

Additional context
Application is installed as a user install running from %localappdata%\Programs\CompanyName\AppName, running as administrator did not change results.

AB#37425847