It's because Microsoft isn't really serious with C#. For years it has advertised other languages (e.g. JS on WinRT) or runtime (wasm), support in VS Code is still rather interesting, UI frameworks were never made truly multiplatform and the one which supposedly is is still buggy as hell (maui). C# 12 is a pile of crap (C# 13 looks interesting tho).
So in the end it's good all those tools stay independent and focused.
So in the end it's good all those tools stay independent and focused.