I guess I'll be the curmudgeon here, but I cant imagine wanting to play a game like this on a handheld device at such reduced quality.
Like, one of the big selling points of these blockbuster PS4 exclusives were their incredible presentation levels. And while obviously the results here on Steam Deck are ok, the graphics have clearly taken a serious hit and you're missing out heavily on this selling point of the presentation levels. They are by far best experienced on a proper console/PC and large display. And I would absolutely make sure that's how I did play it. Sure, it's neat that I could play it away from the house or something, but I'd much prefer to just wait til I'm home to play it there in its full glory. Not like there aren't many other games that are far more suitable for handheld to play instead.
I agree here but yeah, many like the steam deck. I have a laptop (Asus G15), its not as mobile, but it does give me the full experience. I wont be going for something like a steam deck or gaming on a tablet/mobile phone.