I did play bg1,2 and been playing Ad&d since a kid. my biggest joy of bg3 is the emphasis on dialog, and feeling like a real role playing game.

the hardest part for me honestly is the camera.

I saw that it was to be 'based on D&D' and '5E rule set' specifically. yet that doesn't hold them to strict guidelines. based is just based. and even bg1 , 2 have core rules options and a handful of other diffuculty modifiers which in its time were the best they could do to customize it.

I feel like this deviates in some ways from the rule set. yet at least in 2e from my day. The DMG itself said these rules are simply guidelines. they were not intended to be strict. Many groups had house rules.

So it being strict to D&D at its core is minor to me IF it really emphasizes role playing. and it does. very well actually. i feel aware of my npcs, and the townsfolk, and consequences for my actions. plus i can just engage, find new info, have meaningless dialog and banter at camp.

In that way, this is MORE D&D than many games with the title, according to the forward in D&D's own manuals.