If you know how to abuse the current system, almost all fights (maybe with the exception of some Underdark ones) are ridiculously easy. But that's not the point, regardless of the difficulty, combat is just bad in the current state, the mechanics are broken. Small-stepping to get behind enemies or impala-jumping on every turn to get advantage is the opposite of fun, let alone balanced or close to how a D&D fight (or just about any fight) should look like. The fact that all monster stats had to be thrown out of the window and thus you have Gnolls critting on 16 with 3 ApR & fire damage is just a consequence of these completely broken combat mechanics - and maybe the "rule of cool" to an extent.
It's a bit frustrating, there is a lot to like in this game, I'm really just starting to think that this shouldn't have been BG3. Larian could have just created a new RPG in a new world (not FR, not DOS) without having to try to make it _seem_ like D&D...