We spent the better part of a calendar year researching what framework to update our MFC app to. We really liked the idea of staying first-party since our UI is explicitly Windows-only, and we looked at every framework - MAUI, winforms or WPF with a C# layer, WinUI3...

It quickly became apparent that WinUI3 was the only one even close to viable for our use case, and we tried getting a basic prototype running with out legacy backend code. We kept running into dealbreakers we hoped would be addressed in the alleged future releases, like the lack of tables, or the baffling lack of a GUI UI designer (like every other previous Win framework).

...We're currently writing our GUI in Qt.