You know, I bought a MBP as a personal machine 6 months ago - my first Mac - and this post made me realize that I couldn't even tell you what its desktop looks like. I'm sure I saw it a few times when I was doing initial setup, but I don't remember anything about. I used to do things like set custom wallpapers, but probably around 10 years I pretty much stopped using the desktop entirely.
macOS will re-open the programs you last had open, and reposition the windows to the same locations as before (though with dubious success at actually opening the correct files) upon restart, so it's entirely possible to have a perpetually-buried desktop that never becomes visible.
