No, they definitely don't.
Even with how bad most video game writing is, current LLMs are laughably short of useful for the purpose you're implying and a game that replaced human writing with an LLM in real time would be a lock to be the worst written game ever made.
What a douche move lol.
It would be less disrespectful just to leave the steamdeck version equally fucked than to openly slap people in the face with "it's arbitrary, but fuck you".