Portables are the best for this, imo. Steam Deck or a used 3DS are my choices. The latter is easy to mod and play all sorts of games including the gigantic DS/3DS library.
I find both systems clutch for the suspend function. Lets you pick right back up where you were. I will say the 3ds is much better at this with clamshell design that suspends on closing the lid and it’s battery life in suspend is fantastic!
I also find stress relief games. Mindless 3rd person action games for me. Mad Max was great because I could drive around picking fights or crashing stuff. The Batman Arkham games and the Shadow of Mordor games are other great examples for me. I have not found any relaxing “cozy” games that work for me. Nothing has really grabbed my attention enough to stick with.
I work from home, so the last thing I want to do on my leisure time is sit at the same desk I’ve sat at for the last 8 hrs. So I lounge on the couch and play through my huge steam deck library. It is not a cheap device, to be sure. But I felt it was absolutely worth it for me.