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

A multi-monitor setup can significantly increase ... You also have a choice of desktop backgrounds. You can use the same image on all monitors, span an extra-wide image across all monitors ...

For example, if you cannot set different wallpapers on the dual monitor setup, you can use a third-party tool. If your second monitor is flickering, you should consider updating or reinstalling ...