Do you remember the F.E.A.R series? It's awesome on Steam Deck. Buy the series bundle
Trying out my beloved and well aged game series F.E.A.R. popular for its sound engine and horror survivor FPS gameplay. they were the first to introduce the time lapse time control based gameplay physics on the gaming industry later adopted by the max Payne series.
The game runs at smooth 100fps unlocked on an LG QM850-B