Be interesting to see what happens, MS is releasing.Net 5.0 That's supposed to be cross platform and supersedes all the other stuff.
the native grumpy old people like me will continue to use Windows forms or WPF or MFC,ATL,Win32.
The masochists will try to use the open-source silverlight replacement. Moonlight?
The futurists will use Avalonia. Maybe SAFE stack MVU via Fable?
The Microsoft contractors will use WinUI3.
Vast majority of web developers today will use electron, as unfortunate as that is...
Your Silverlight replacement would be OpenSilver.
The cross platform toolkits would be MAUI (nee Xamarin) and Blazor.
Electron is the new Active Desktop/XUL, its fashion phase will eventually fade away.
Can you share the official source of this statement?