aerodyne
2 of 3 EV's - Defect Free!
Sounds like you are a Steam power user, at least compared to me. I've done a little Witcher 3, but lastest updates don't work with my PS 5 controller, the one Tesla recommended.I have played Witcher 3, Cyberpunk, Hollow Knight, and Portal on it. Generally fine although not the same experience as on my 4090 (as you would expect). I had to reduce some settings on Witcher as I had everything maxed from my home PC. Have yet to try some other games. But it works about as you would expect a steam deck to work.
That said… it’s not that impactful really. Unless you are frequently waiting in your car parked, you don’t end up using it much if at all. I could see it being more meaningful if you supercharge a lot or if you have to wait while your kid is in dance practice or something.
Skyforce is more my skill set, close to Asteroids, since departed from the game selection.
Which games of the ones you mentioned is good for short plays, and can you load more than one without a SSD?