I'm gonna throw Star Trek V in there under the label of "so bad it's kind of good".
spoiler
I mean... where else can you see Kirk fight a catgirl and kill (?) her by chucking her into a shallow pool of water, Spock nerve pinch a freaking unicorn, a screaming satellite, jet boots, a weird little marshmallow dispenser, very cheesy dialog, etc?
I mainly use mine for gaming because I have a desktop and a laptop too, but I don't see any reason why you couldn't use it as a decent semi-portable computer. It probably won't be as convenient is a laptop when it comes to typing on the go, and it certainly won't be as powerful as a desktop, but gaming on a Steam Deck is an absolute joy.
You'll definitely want some kind of dock, a monitor, a keyboard and a mouse.