How can certs be added to the CurrentUser/My store on Linux?

The page explains which scenarios are supported, but (at least to me) the explanation of how to actually populate the Linux stores with a certificate remains vague. It says "class is a projection of system trust decisions (read-only), user trust decisions (read-write), and user key storage (read-write)" and also "no user stores exist by default".

Is it possible to provide a bit more detail (e.g. link to relevant instructions) about how one would actually put a cert in the store so that an app can find it?

The CurrentUser/My store is of interest because that is what appears to be used under the hood by `ProtectKeysWithCertificate` ([source](https://source.dot.net/#Microsoft.AspNetCore.DataProtection/XmlEncryption/CertificateResolver.cs,4bb51ad0fcdc9ffe)). It checks the CurrentUser/My and LocalMachine/My; the latter is not supported on Linux according to the docs page.

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#### Document Details

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* ID: 7dba5d39-737f-cfa3-b1e4-c997e55312a8
* Version Independent ID: 95e31f6e-9a36-913e-6a02-7fb1606e5a52
* Content: [Cross-platform cryptography in .NET Core and .NET 5](https://learn.microsoft.com/en-us/dotnet/standard/security/cross-platform-cryptography)
* Content Source: [docs/standard/security/cross-platform-cryptography.md](https://github.com/dotnet/docs/blob/main/docs/standard/security/cross-platform-cryptography.md)
* Product: **dotnet**
* Technology: **dotnet-standard**
* GitHub Login: @IEvangelist
* Microsoft Alias: **dapine**