Yeah... a LOT of the Drow lore got amped up around the time Salvatore was writing about Drizzt.

Some of it was like "the Tau are actually led by mind control" in that it was always there but mostly ignored. But most of the REAL fucked up "let's have an orgy with your siblings" stuff was very much done to make Drizzt cooler and... yeah...

Its why anyone who insists "they ruined Forgotten Realms" and "We need to go back to the good old days" deserves some massive side eyeing,