Meanwhile, someone asked the Elminster "AI Bot" on the official FR Discord and got a dramatically different answer that feels less "Forgotten Realms" and more "Evening News"...
Ed Greenwood wins this time, in my book!
Nothing in the OP shows trans drow as "canon" . . . but this excerpt from Dragon Heist does!!FWIW there's a trans male drow gunslinger running with the Bregan D'aerthe in Waterdeep: Dragon Heist.
Here's what the book has to say about him "Fel’rekt is a male drow who was born female. Unhappy with the treatment of males in his society, he petitioned to join Bregan D’aerthe. Jarlaxle took a shine to Fel’rekt almost immediately, and the young drow has since become one of Jarlaxle’s most loyal lieutenants. Eager to prove himself, Fel’rekt is quick to volunteer for tasks and hurls himself into combat with verve."
It's hidden away in the appendix in the section on the Drow Gunslingers.I love the above excerpt from Dragon Heist! I own the book, but somehow missed that.