I have to admit I don't understand this, and not a dig at OP this seems a long standing tradition to show a desktop
So you look at your screen like a fishtank ? I use LMDE and startup; terminal, Firefox, Nemo, Signal and a bunch of other shit. They fill up my screen, my desktops something blank from memory. ut it moght be a photo ? I am AFK and cant remember to be honest.
I run a poverty pack setup and only have 1 screen, so i use multiple workspaces and have IBKRs Desktop trader software running on one exclusively and another has bunch of other stuff and more browser windows for other projects
but heck, i cant even get the PrtScrn button on my Logitech KB to work so wtf would I know :)