Microsoft to focus on Win32 apps refresh for Windows 11, Windows 10

Microsoft is currently not working on a stable release of WinUI 3 for UWP apps, as the company wants to focus on once-legacy Win32 apps for Windows 10 and Windows 11. WinUI is a new user interface for both Windows 10 and Windows 11, and it contains modern controls/styles for Windows apps. Microsoft officials describe WinUI as the "native UI platform" and Microsoft uses it in the shell of Windows as well as React Native for Windows.