If doing certain things under proton was less of a pain in the ass, I’d agree with you. But proton still isn’t simple for some usecases.
EDIT: the people downvoting me very likely have only surface level experience with Proton. Sorry, it isn’t perfect. It’s based on WINE, which also isn’t perfect. It’s making a lot of progress and is damn close but it isn’t perfect.
I guess they are referring to playing some specific games or software which don’t work well on Linux even with proton.
That’s the great thing about the deck; You can use it for whatever you want.