I’m the guy everyone stereotypes as a CIS male, but is really a feminine male at heart. I have male anatomy, so I consider myself male, but am not your stereotypical male and don’t think I should be one. I guess that technically makes me trans, but I hate labels, so I am just me and I happen to have a ding dong.
A legitimate reason might be that you want to talk about things that your employers might not approve of, like your sexuality or your politics. We don’t want to get fired because we are are LGBTQIA+ or oppose tyranny.