I'd be okay with this, I'd also be okay with MAUI (which... is a whole behemoth of how to make UIs), but anything, hell I would take them porting WinForms somehow into a cross-platform .NET thing that runs everywhere (Mono used to!), I just want anything at this point.

XAML was supposed to become an open spec, not sure why they have so many teams making so many different ways to make UIs. Then there's those "Windows 8" apps, or the "Universal Windows Apps" which are poorly named, you cannot run any of them on previous versions of Windows, if anything Win32 apps are universal apps.