I can play any number multiple repetitive/nonlinear games that don’t require keeping track of a story or events. So racing games, most FPS, etc. Right now I can switch between Helldivers 2, Call of Duty, Forza Horizon, Valheim, Tekken, and so on at the drip of a hat. I do end up customizing controls so they are similar within a genre, so HD and COD get trmapped to my standard first person shooter control scheme.

But I cannot stay engaged with more than one game that has a storyline/things to rememeber like the Witcher, Red Dead Redemption 2, or Horizon Zero Dawn even if they have handy in game reminders for what to do. Switching between stories is my dealbreaker for playing at the same time. I also have trouble sticking with a story long enough to complete those types of games which is a bummer because I like the idea of them.