Finished SuperLiminal last night which I really enjoyed, really intuitive and flow inducing game that makes you think and has a nice message to it. Started Shadow Warrior 3 but I’m not sure it’s for me. Biggest recent ones have been Brutal Doom (Extermination Day) which is unbelievably good and Halls Of Torment (Vampires Survivors but like Diablo)
It’s a mood that adds mouselook. I don’t know about steam deck but it’s literally 3 downloads (gzDoom, Brutal Doom and Extermination Day) and a whole new campaign with new weapons. Really excellent.