That said, some "lesser" NPC companions' could be a great addition. comparatively simple, likable, and broad archetypes. A paladin who just likes to help people. A rogue who just likes money. A barbarian who just likes hitting things with an axe. Characters that aren't going to be driving the plot, but also aren't going to competing for the spotlight. Hell, if anything, that reflects actual D&D much better than every character having a deep, complex backstory. Some people love playing those kinds of characters; some are just there for the combat, or to try out a silly voice, or just get a sense of satisfaction from a nice, simple power fantasy.
I mean, Minsc and Boo were never destined to be the main characters of the original games, but that didn't stop them from being the most beloved ranger and hamster team in the world.
This is exactly what I want. Companions who don't really have a backstory, but are there to help ground the world a bit. Especially a barbarian who just likes to punch things. I will happily take that.