This isn’t really about the user getting used to nuances, it’s about the games getting used to them. People complain when a game doesn’t work instantaneously on Windows too.

Plus, going off the latest Steam survey, people mostly play their own weird and obscure games with only some hundreds of players. So much of the time, searching for game support is not going to give any results because they might be the only Linux player.

That’s not even getting into how much setup annoyance there is if one of your choice games isn’t on Steam.