Having a day one patch doesn’t make a game broken, but it is a symptom of a bad internal process. Here are the patch notes for BG3 Day 1 (not sure if 100% accurate, but this is the best source I could find). To me, that doesn’t sound like anything game breaking.
I’m not saying BG3 is the gold standard for AAA game releases, I’m merely saying it’s what we should expect for an average AAA release with some being a little better and some being a little worse.
I’m not saying every bug needs to be fixed. Even older games before SW patches were a thing had a ton of bugs. I’m just saying, the game should play well even if users never patch the game. This is really important for game preservation, so you should always be able to take the game disk and install it offline and play through the whole game and have a great experience. That’s not the standard many AAA studios hold themselves to.