Truly a mystery how someone can compare Early Access of BG3 unfavourably with BG1 and BG2.
However these games are almost unplayable today. The horrific graphics, clunky interface and arbitrary limitations of AD&D just don't hold up. There's a reason that less than 10% of folks who have paid for Enhanced additions of either BG1 and BG2 on Steam have actually finished the game.
That is an opinion that I do not share. I find the originals quite playable today. I played BG1 start to finish as recently as last year. The one part I *sort* of agree with are the arbitrary limitations of 2nd Edition AD&D. I do like 5E better, but I don't think that we are actually going to get 5E from Larian, so that is rather a moot point.