I’m one of those weirdos who go deep into a game setting’s lore, and Forgotten Realms used to have incredible lore. BG3 really drives this home—(it so drives home how good the lore in Tome of Foes was, but I digress). I don’t expect WoTC to go all 3/3.5 on us again when it comes to FR lore and stuff, but I’d gladly buy more quality Forgotten Realms stuff.
One of the things I really hope Wizards picks up from BG3, is that the lore matters, but doesnt actually restrict the players at all.
It 100% reignited my interest in D&D, because it demonstrated exactly how everything being downplayed or outright removed, could actually be leaned into, to make a rich, immersive experience that you really cared about.
Look at the absolutely tiny area the game takes part in, and then look at all the call outs, all the history, depth, and relevance tiny details have on the entire experience...and then realize that all of that lore can also be 100% ignored, you can romp through the game without picking up a single book off a shelf, without caring about where Karlach came from, her back story, and just play through the adventure and have a good time.
All that lore is not shackling anyone. Its giving you something to dig into and enjoy above and beyond playing the game itself. Its a whole other avenue of 'monetization' of engagement, of interest and passion between fans of the genre, the game, or the setting.
Its the depth, and history, which 5e has hardly contributed to at all, yet has been called upon for book after book after book.