It’s a great game by all measures, but it really feels more like a sequel to the last two Divinity games rather than the Baldur’s Gate series. The only thing it really has in common with the old games is the setting, a few recurring characters, and the fact that it’s based on D&D. Otherwise, they are about as different as CRPGs can get.
If you want a spiritual successor to the old infinity engine games, look at the two Pillars of Eternity games and the two Pathfinder games.