Thanks, Andy. Welcome to the party. Yes, that’s pretty much the way I do it, although I save the png so I have it for later, too. Unfortunately, it does not work for me right now.
I get the wallpaper thing. I’m running a windows VM and I remote (Jump) into a couple of other macs and PCs. Sometimes all at the same time. It can get confusing swiping between desktops. For a while I had tried placing the dock in different locations to be my visual clue. That just got too messy. (Working on an i9-9900 w/ 64GB RAM makes all of that run smoooooth as butter, I tried 32GB, but it just wasn’t enough.)