>>715688391
>Switch
Many games run fine at 60fps (or 30fps if they're 30fps games), but anything 3D that's too complex will run at 40%-70% speed.
But, you're better off buying the SteamOS version of Lenovo Go S or whatever it's called. It has 10%-18% better performance which should make more games playable.
Or just live without the more demanding games for a while and wait for Steam Deck 2.

>>715690481
It's fine for 2D, yes.