Comment by ocdtrekkie

I mean, if Microsoft cared about cross-platform support, I would too. But they don't have an officially supported GUI framework for Linux. I understand there are new things in the new .NET, but the story for upgrading to it and supporting it still isn't worth it.

When Windows builds in a modern .NET, I will use it! Bear in mind all of this above churn, while they claim is the new way things work, is inherently temporary: The reason .NET 4.8 is so well supported is Windows is built on it. So if Microsoft ever wants to use those newer things in Windows... Windows will have to build-in modern .NET features someday.