No, dude. It is D&D. It’s set in Forgotten Realms, follows the actual lore and uses the actual mechanics of the pen and paper game for all the dice rolling stuff (barring a few things that need tweaking for the medium and eschewing more meta rules that can only work in a PnP setting).
As a fan of both the original Baldur’s Gate games and D&D in general, I have found BG3 to be the absolute pinnacle of the D&D CRPG subgenre. It lets you do so much more stuff than any other D&D game. I love it. It’s been a while… The last D&D game that did as much as BG3 is doing now was Neverwinter Nights.