Notably, this KB5036892 Windows 10 update adds Windows Spotlight to your desktop background, which changes different wallpapers and also suggests wallpapers for the lock screen.

We explain how to get a crosshair cursor, and how to make a crosshair appear for your mouse pointer (CTRL+ALT+P) in Windows 11/10.

If you want to use Sxstrace.exe command line tool to diagnose side-by-side errors on Windows 11/10, see this post for guidance.