It is worth mentioning that for every person that says Pathfinder sucks because it's too complicated, the larger gaming community will see something like BG3 in the exact same light. It is this line of thought coupled with the RNG factor that makes me know that BG3 won't review as well as DOS:2 for that exact reason. And for that, It is not a criticism worth entertaining.
I went into Kingmaker knowing NOTHING about the ruleset. And my first character was an Eldritch Archer, which is apparently one of the hardest classes to learn. I had not played ANY tabletop DnD prior to that as well.
I think I managed alright. Put in the work to understand as much as I could and I ended up really enjoying it in the end. Though I know there's still quite a bit I don't understand, but it's a deep system and I appreciate the variety of stuff the system allows me to do for that reason. I only wish I could have a class like Eldritch Archer in DnD 5E.