Moving goalposts, the point was what are the native APIs.
Office framework would not exist without Win32, and usually it is made available on Win32, e.g. ribbon as common control.
Xamarin was never used at Microsoft, how to expect the rewrite to go any better. This acquisition was a mess, almost everything from Xamarin is gone.
Again, not a native API.
Blazor only matters for Web applications and PWAs, unless Windows turns into ChromeOS there is nothing native about it.
Blazor is only for web applications, until you run into Blazor Hybrid, which doesn’t produce web applications!
That is marketing gimmicks trying to get additional market share, and the current adoption failure of MAUI customers, as teams leave Xamarin ecosystem after the Xamarin.Forms to MAUI (incompatible) rewrite.
I give zero value to Blazor Hybrid, from my point of view it doesn't exist.