[quote=Taril]
Then by those stipulations, BG3 isn't a D&D game. Because it uses Larian's homebrew.
Larian's homebrew makes BG3 feel less like a D&D game and more like a Divinity game.
Contrasting this: I recently got a request to run a D&D session and since I do not usually play it, I had to rely a lot on improvising based on stuff I remembered from bg3. That worked very well.
So while these are house rules, they do not make bg3 incompatible.
