I am not sure, Flutter is still using DART ? That's a pretty big no go, last time i looked DART was a haphazard clone of Java/C#/Kotlin with no discerning features of any value.... I rememember when it was supposed to be the new Javascript (transpiling and big dreams of landing a native Dart VM in browsers )

For me its a no go to have a language that's bascially a dead end outside of one specific ui framework.. Seems like a solution in search of a problem.

The performance of flutter on the web is unusable, I would be ashamed to ship an app using it.

What other framework doesn't maintain 60 fps in its hello world?!

Flutter works great on mobile and desktop though, I shipped multiple apps using it and currently writing a desktop app.