I run almost any form of D&D in the 2E era. 4E blowing it all almost ruined D&D for me.
As for 5E, their half-baked Dragonlance was the final straw for me. I was already to buy in, then the previews started coming out. Just flat ruined it for me.
Kind of done buying 5E stuff until 5.5E comes out. I did pick up Planescape because the reviews seemed to be glowing but I'm waiting to mess with it when 5.5 comes out.
See WotC, if the product isn't a bland turd, people will buy it!
But yes, BG3 used a lot of 2E lore to carry the story, which thank goodness for that. I mean it is a sequel to 2E era games so makes sense.
I'm willing to bet BG4 or whatever won't.