For a polished look, consider updating your user account picture as well. Go to System Settings > Users & Groups, click your profile, and set an image that complements your new lock screen. Together, ...

A Slideshow is a series of still pictures displayed on your desktop background or when your computer is inactive. You can easily set a picture folder as your desktop background slideshow, screensaver ...

If you want a flashier background while using the app, you'll need to install third-party software on your computer and then alter Discord's settings. How to change your Discord background To change ...