Personally what I really dislike more than "one thousand classes" is the multiclass system where you can make your "piece meal" build taking one level here and one level there, etc. As if making a character was some weird buffet.
It's something I don't really like in principle even in D&D and Pathfinder just makes it worse.

I think my favorite multiclass system may be the one used in Pillars of Eternity 2 (and I don't even love that game as much as some other people here): you decide two classes upfront (with relative subclasses, if you really want to) and from that point on you are set.


Party control in Baldur's Gate 3 is a complete mess that begs to be addressed. SAY NO TO THE TOILET CHAIN