to me the biggest difference is that in divinity it still felt like i could do literally everything, and like I was just checking off steps in a task list until i made it to the end.
bg3 is the first game where i actually feel more like I’m playing an actual ttrpg that organically breaths and moves with my actions and let’s me do it all in literally any way i can imagine. it’s the first time I don’t think i could ever play through to every eventuality.