It's been a long time since that was the case though. Now you have to update the console, update the controller firmware, install the game, and update the game.
Sure, but they're approaching a convergence. PCs have gotten easier and consoles have become less streamlined. With something like the Steam Deck, it's even more blurred.
Steam is legitimately easier and faster to get games going on than my PS4 these days IMO. Library is laid out alot better and there's no signing in whenever I turn on a controller. Its still easier to do local multiplayer on PS4, but not by much.
and there’s no signing in whenever I turn on a controller
Can you not sync your account to a specific controller on Playstation? Xbox has that for a while, though the whole software experience has generally been Xbox's strong suit imho