Error NU1202	Package Telerik.WinUI.Controls 1.2.0 is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Package Telerik.WinUI.Controls 1.2.0 supports:
  - net5.0-windows10.0.19041 (.NETCoreApp,Version=v5.0)
  - uap10.0 (UAP,Version=v10.0)	
Is the above true? I am using 1.2 via nuget. Is that correct?

Fixed by using:
<TargetFramework>net6.0-windows10.0.19041.0</TargetFramework><TargetPlatformMinVersion>10.0.17763.0</TargetPlatformMinVersion>