> built on top of WinUI 3

The one time in recent Windows UI history being a webview would probably have been ok…

The previous iteration was actually running on top of webview2.

The right answer would be Win32, but apparently all those devs already retired from Windows team.

So we're left with those that only know Web, thus Webview2 or React Native. Or those whose job depends on pretending WinUI is still what was sold under Project Reunion at BUILD 2020.