I made some 2 more Windows 11 wallpapers (4K) : r/windows

Windows 11 Wallpapers: Best New Ones and Where to Download More

Surface Pro 9 by Microsoft, Wallpapers

Official Windows 7 Wallpapers - WPArena

Get new themes and desktop backgrounds - Microsoft Support

How to make a live wallpaper

Unfortnately the new windows 11 backgrounds max out at 4K (3840 wide) and so appear heavily cropped and blurry at 5120*1440 : r/ultrawidemasterrace

Have You Seen These Stunning Windows 11 Wallpapers? (Dark versions included / all 4K res) : r/Surface

Windows 11 Stolen Wallpaper!, Page 2

Download Windows 11 Wallpapers [4K Resolution] (Official)