There are many people, for whom a 1920×1080 pixel resolution is not enough, which is pretty much common, nowadays. They then often opt for a dual monitor setup or even a multi-monitor setup.

To set different desktop backgrounds on Windows 10, navigate to Settings > Personalization > Background, then right-click the ...

Right-click on the above image and select 'Set As Background' from the pop-up menu to make the image directly into wallpaper. Or, alternatively, select 'Save Image As...' and save it into the ...