I think MAUI is in part built on the back of Blazor. They might converge, but I don't think its underlying model is going anywhere.
I don't work at MSFT though, so YMMV? I don't think its going to end up like Silverlight. They seem pretty committed to not back pedaling anymore like that, they know it hurt them so much, at least thats the message I been getting from MSFT developer relations, is an some admittance they really borked their DX by going through such rapid turnover of UI frameworks and such.
No it is not, MAUI is having the option to support Blazor via WebWidgets as a kind of Electron competition, which probably only the Blazor team themselves see as an advantage.
MAUI by itself is Xamarin ported to run on top of .NET Core (now .NET 5+), with WinUI as backend on Windows.
In what concerns UI Frameworks coming out of Redmond, it looks like pretty messy civil war right now.
I don't work at MSFT though, so YMMV? I don't think its going to end up like Silverlight. They seem pretty committed to not back pedaling anymore like that, they know it hurt them so much, at least thats the message I been getting from MSFT developer relations, is an some admittance they really borked their DX by going through such rapid turnover of UI frameworks and such.