on the informal poll of the fediverse I did last year
@Alyx I think I remember asking about it and discovering opinions were pretty mixed? There are a bunch of people who read it as gender neutral because of phrases like "my fellow autistic trans furries" or "So-and-so is a fellow at wherever-the-heck" or whatever, but there are also a bunch of people who read it as very distinctly male because it was apparently used that way.
https://dragon.style/@packbat/100305207374402454 is the post where I asked about it if you want to read the replies