Depends on game I think, Splitgate played amazing and deck was my preferred choice to play because the controls, I usually prefer keyboard and mouse for fps. CSGO will never feel right without a keyboard and mouse imo.

Also depends on how good you get at fine tuning the controls, there is A LOT of settings and modifiers to fuck around with.

Xenogears using EmulationStation on Steamdeck.

Dope game so far, been a while since I played a good old school jrpg.

I’ve beaten a few games with, basically if I want to chill and play a controller based game I’ll get it on there, Resident Evil 4 most recently.

Rimworld also works well on it and it is a blast to have a mobile colony.