Larian Studios Forums Divinity: Original Sin 2 Divinity - Original Sin 2 - General Massive Exp Nerf in Definitive Edition

There was a nerf. Some players were managing levels above 20 before the endgame. I even heard heretic rumors of players reaching level 23 on CE. Now it's so that you get to the final battle pretty tightly at 20, with some leeway of completion, but not enough to level up any further.