Also both in very active development: https://github.com/dotnet/maui https://github.com/dotnet/maui https://github.com/microsoft/microsoft-ui-xaml https://git

Also both in very active development: https://github.com/dotnet/maui https://github.com/dotnet/maui https://github.com/microsoft/microsoft-ui-xaml https://github.com/microsoft/microsoft-ui-xaml (WinUI 3) WinUI 3 includes all of what used to the the UWP controls and Renderer but "lifted and shifted" out of OS updates and also made accessible to non-UWP (primarily Win32) applications in Project Reunion (and techniques such as "XAML Islands").