I like women. I like the shape and curves of the female body. I like boobs, I like asses, I like pretty vaginas. I also appreciate and am aroused by a nice cock. I’m however not otherwise attracted to the male body. I like femboys as long as they have a feminine-like shape and curves, as many of them do.
WTF is my sexual orientation?
I wouldn’t say bisexual makes sense categorically for anyone who dislikes half of the masculinity/femininity spectrum. I mean it is a bit different with femboys, but I also suspect attraction there is very superficial (esp. if the look uses silicone body stuff) and likely wouldn’t work as much in-person especially on a relationship level.
There is the term gynephilia, though I also don’t expect something like that to be casually mentioned/understood/accepted. In which case, no good answer I guess.
Bisexual is simply someone that is attracted more than one gender. Nothing to do with masculinity or femininity, so in this case, as I said, it’s a perfectly acceptable label. But if it doesn’t help the OP navigate the world or understand themselves, then it’s not the right label for them. If gynephilia does help them, then that’s the right term.