They absolutely can do such things but then the money comes out of their pockets, possibly with the option to sue Rockstar for breach of contract and money back. I wouldn’t even be surprised if Rockstar contacted Valve and said “don’t worry we’ll take the hit”, having calculated what it costs to continue supporting the deck vs. taking that hit. Certainly not a company which has to worry about cashflow a lot.

Sony also refunded CP77, IIRC without getting CDPR involved, and Sony generally has a shoddy return policy. At that point, to the store, customer goodwill is more important and they’ll figure out things on the backend.

OP didn’t describe that kind of case, though, but “I bought a game without checking whether it’s compatible with my hardware and didn’t bother to launch it for six months”.