Devoted followers of Lloth, it is not only a myth but a harsh reality that any drow who denounces the Queen of Spiders and makes their home of the surface will be hunted down for ritual sacrifice to the goddess they betrayed.
Any drow that is one of these subclasses are considered an outcast:
Cleric (Any deity that’s not Lloth)
Druid (Circle of the Land, Wildfire, and Stars)
Monk (Mercy, Astral Self)
Paladin (Any deity not Lloth)
As well as any Drow who does not follow Lolth in general.