This thread has made me realize something. It has occurred to me that it almost doesn't matter what wallpaper I install. Sure, when I create or select one, I can look at it and admire it, but, truth be told, in actual daily use I seldom ever see the background.
For many years, I've been a fan of multiple workspaces -- even back in the day when I was using Windows, the free utility VirtuaWin was my friend. More than one workspace makes for a very efficient workflow. With a number of workspaces available I can use nearly every application in its most useful full-screen mode.
Full-screen email, full-screen browser, full-screen games, full-screen VMs, full-screen terminal, and so on. Since each has its own workspace, no app ever competes with any other app for screen space.
So, I seldom ever see the background wallpaper,. Kinda makes me sad.