BG3 is my personal best game played in 25 years of gaming. There are very few developers that I would trust to perform on the same level as Larian, who really have set a new high bar for the industry.
FromSoftware (makers of Dark Souls/Elden Ring/Armored Core) consistently puts out bangers although I don't know if their ARPG experience would translate well.
CDPR (Witcher games, Cyberpunk 2077) if they've learned their lesson from the 2077 launch. Maybe I'm too hopeful, but I think they have and Phantom Liberty/2077 is really good now.
Owlcat (Pathfinder games, Rogue Trader 40k) if they are given the resources to keep the game in development until bugs are ironed out. Owlcat makes games that are rough on launch and amazing two years later. Mechanically the games are unbalanced (although usually in a fun, ridiculous way) but the writing is top-notch.
Of course this is just opinion (and it's been a long time since I played DOS:2) but what I noticed were mainly refinements (facial expressions, voice acting, graphics) and scope. There's also the sheer amount of content variation in BG3 in that you can play a handful of times and see a lot of completely new reactions, dialogue, and quests depending on decisions and party composition. For instance just picking a Dark Urge character or not can make the game feel different.
I think CDPR has always been what it is now. Just that nowadays people enthusiastically jump on the internet bandwagon, whatever direction it might be, positive or negative.
That is to say, it's the same as Owlcat. Initially buggy, but amazing and GOTY after patches. People always forget that Witcher 3 was a mess when it came out, as was Witcher 1. There was a big deal about the fact that CDPR made their big content/bug fixes updates for free with Witcher 1.
I honestly don't remember how witcher 2 did on this spectrum, though.