Not sure what you're talking about but if I have MANY complaints about combats and the rules of BG3/D&D, according to me what they did with classes features is pretty good.

They removed what is obviously uninterresting for the video game and replace them by pretty good and balanced things.

I'm worried about the "disengage as a action bonus" for everyone because I think it should only be a rogue feature... But don't have any other exemple of totally WTF and/or broken things.

There are also a few details that are not totally accurate and sometimes a few bugs but I didn't notice really annoying things.

Do you have exemples in mind ?