This might be splitting hairs but I think there's a difference between an exploit and cheese but the line is pretty thin. In WotR it's possible get an armor class of 70 + by combining classes with AC bonuses that aren't mean to stack. In the infinity engine games "attack the darkness" - throwing fireballs in the fog of war areas is an exploit - you know the enemies are there but they can't see you and so can't react.
Barelmancy is cheese because the devs put them in the game to be used in as an instant win button.
Which raises the question - what are the exploits in BG3?
