Sorry about the potential spoiler then but I can assure you Darkvision in BG3 is a must if you don't want to roll at a disadvantage almost constantly or rely on torches/cantrips or other inferior methods of illumination xD
Oh I am good with this. Stuff like stats, powers, abilities, I want to know about. I know a bunch about D&D 5e but BG3 differs quite a bit in areas and a bunch of classes work a bit differently than in 5e. I am glad to know that dark vision is actually valuable.