[sander1095]

This has no longer been the case for C# for 10 years since the release of .NET Core and (now) .NET. The runtime is no longer bundled with the OS.

This is only true for older .NET Framework applications.

[Topfi]

Isn’t it post installation still updated via Windows Update as they said (force end-users to update the framework)?

[nly]

Only patches, it doesn't automatically install new major versions