Just as a counter point to the opinions in this thread. I came into this game without ever playing D&D and was not familiar with the rules and would say that it was very NOT beginner friendly, nor does traditional video game logic apply. That being said, I learned and loved the game, but I would advise reading as much as you can stomach before ever even venturing into the character creator. Stats/Attributes were very confusing to me at first, as well as how they affect combat. I may be a bit slow, but I play way more video games than most, so I'd be surprised to hear someone whose first D&D experience is Baldurs gate 3 saying it was intuitive. Totally worth it though.
As a counter counter point, I played with a friend who was unfamiliar with tabletop RPGs systems and he was able to play and enjoy the early access with very minimal help. The good thing with DnD is that it is very hard to ruin your character build (unlike PF which is full of noob traps). How stats can influence combat is probably the hardest thing to grasp in this system, I do believe that BG3 explains those at character creation?