First off, Larian did improve some aspects of the AI in combat. This is not a total shit on Larian thread, but there are still some critical issues.
PRIORITY: I have seen this AI skip over an enemy that had lower HP and advantage roll, maybe 1 hit from being downed, to hit a full HP enemy with no advantage. Seems very weird to me that this happens.
Damage spread is really good for normal difficulty and lower. It shouldn't be too difficult to have a tweaked AI for higher difficulty.
TBH focus fire DMs are no fun. And the same is true in Baldur's Gate 3. D&D rules usually aren't fun with focused attacks from the DM.
Some sleeps the AI used seem to complete break the logic.
Bless I have seen where AI Clerics only bless themselves and then move near allies, when it should be the other way around. They are not maximizing the targets for buffs and doing things out of order.
Fog cloud is another spell where the AI is using it almost at their own disadvantage. It makes the battle easier for the human player.
If players bring a human party the sleep cast could be devastating. The AI has successfully put Gale to sleep several times. Fog Cloud I agree with, it usually gets cast for no effect.
