Having some bugs is inevitable, no software is ever perfect, being a bugfest is a different matter, this game is not.
I’m in act 3 and I haven’t see anything particularly annoying so far, BG3 is a masterpiece, giving it a low score only because of some bugs (that devs are very quickly fixing), is a shame IMO.
What CA are you getting your certificates from?
If Let’s Encrypt, have you checked their alternative methods to certbot?