I play mostly on my Steam Deck nowadays. If a game is too heavy for the Deck I just subscribe to GeForce Now for a month to stream to my Steam Deck. Once everything is setup on the Steam Deck it’s pretty much friction free to start a game, especially in GeForce Now.
Early access games can change drastically over the course of development. And can turn into a different game at release. I’m my opinion that’s still not a valid reason to get a refund if you put in many hours into the game already. As a consumer you should know that something like that can happen with a game that is still in development. You assume that risk.