In DOS they made many compromises in this regard in order to promote their unique game-play quarks- origin story, all origin characters are companions, and all of them are (potential) rivals with the same ultimate goal. this meant that all the characters were basically the same in the large scheme of things, unlike other narratives of this kind where one character is the center, he has a goal and the companions help him to achieve his goal for different reasons. Now I think Swen mentioned that the competitive part of gameplay that was present in DOS2 will not be in BG3, which (hopefully) will create more options for them to innovate the storytelling.
