Nah, Cyberpunk runs well. 30 to 40 in my experience, the real issue is the fucking tiny text that can be barely big enough to be readable, that red font isn't helping either. I think my time with it is split roughly in half between my desktop and Deck. You do need to try find good settings, but I mean it's a handheld so some effort is required.

Baldur's Gate I also play on either system, but I get the bit about it being blurry. I took a fair amount of time figuring out how to get rid of it, I can go grab a screenshot or two with my settings if anyone wants them. It keeps at 30 more or less reliably... but it's important to mention I'm still in act 1. The super weird part is how for some reason it's less buggy on the Deck! Very puzzling. On the desktop it seems to leak memory and that ends up in horrible stuttering, then with some bad luck it can stop accepting inputs aside from menu stuff and movement, and this one seems to be fixable by loading the save on the Deck.

Edit, screenshots:

I play it with a keyboard and mouse using my dock work fine mostly no lag otherwise too small a screen for me for that kind of game