If it isn't too late to jump in on this contest... I've got a bunch of things to clear out on both PS4/5 and Switch, and even a thing or two on Wii U. If I have to focus on one system I'll focus on PS5 (and by extension 4).
I just knocked off one thing in my backlog, Hades. Beat the game 3x and that was enough for me.
View attachment 384406
View attachment 384404
I also finished Fell Seal a couple weeks ago so it's too bad I didn't officially join the contest sooner. That one was backlogged for a while. Then again, it isn't PS4/5. Not sure what I'm going after next but I have Jedi Fallen Order and Code Vein in progress. If I need to absolutely narrow it down to one system, I think I'll be sticking to PS4 games here. Don't really have anything PS5-required that I want to get to immediately. Obviously I'm playing said PS4 games on the PS5 though.