Larian claimed bg3 was gonna be 95% 5e compliant. It's more like 65%.
I'm not so sure, really. There is a *lot* of rules and content. I doubt that if you take a random hundred things they implemented you can point at 35 things that are not. Still, certain things are things that come up all game long, like a action/bonus action swap. But other things are only there because it makes it playable. Like the Beastmaster, or the Monk.
Regardless, I find it hard to judge. At out TT games, we went from AD&D to 3.5 to 4E and immediately to Pathfinder, back to 3.5 and settled on 5E. And every system took us a fair amount of time to really get the hang of en decide what we thought of it. We've always found things we didn't like [look up 3.5 Grappling rules or 4E in general] and homebrewed what we didn't care for right out. It's... part of it, too. I get it if you play this more as a competitive wargame or somesuch. Back when there were stores dedicated to tabletop games - they'd have D&D tournaments where everything obviously needed to be RAW. I get that, and I also get why you'd want that.
But from a roleplaying standpoint... I just don't really care all that much. It is there for us to tell our story, and for this game that's what I hope it does, and it most assuredly will.
