wallpaper changes by itself
MacBook Pro wallpaper changes by itself. New behavior. Did it 2-3 days ago. I reinstall OS today- still does it at random.
MacBook Pro 13″, macOS 11.6
What happens when you Customize the desktop picture on your Mac - Apple Support?
Does this happen in safe mode as well?
How to use safe mode on your Mac - Apple Support (Takes longer to boot compared to normal boot)
Note: Safe mode prevents your Mac from loading certain software as it starts up, including login items, system extensions not required by macOS, and fonts not installed by macOS. It also does a basic check of your startup disk, similar to using First Aid in Disk Utility. And it deletes some system caches, including font caches and the kernel cache, which are automatically created again as needed.