This is a somewhat similar bug to this: Disco Dingo 19.04 background error
It might even be the same, but unlike whoever asked this, I get this problem with every single wallpaper I try. I even get it with blank colors, and occasionally, EVERYTHING glitches out, like this:
As you can see, this isn't even ignorable. I can't read anything, I can't tell what programs are what, nothing. And it's REALLY annoying to have to reload the desktop every time I open my laptop. I've tried turning off sleep, I've tried default wallpapers, colors and my own, nothing works. So I thought I'd ask again if anyone knows how to actually fix this.