No, a femboy is a feminine boy. They usually crossdress or at least dress androginously. They don’t necessarily want to transition or take HRT (although this one does).
Given that this one does, and that a trans person that wants to transition would refer to themselves as the gender they want to transition, they would be a trans male. However it’s 4chan and fake so I bet they meant a trans female, where being into dudes would be being straight.
It might be in this case, but I would not object for a trans man to call themselves femboy if they look like a feminine boy, since for all that matters to me a trans man is a man.
He can still be an amab femboy and take hrt to become more feminine without transitioning to become a woman. He does not claim to be trans, just a femboy.
Well sure but… Why? That’s a great way to give a huge blow to your body for fun. Anyway, it’s 4chan so whatever. In any case you are right, I assumed more than was stated.