Mate, as someone from the queer community, I support trans people, and I believe in trans femboys, BUT if I'm going to buy NSFW material from someone, well, I don't want to feel tricked. And you might say, 'oh, but you're fetishizing and whatnot,' so, YEAH..?
The idea of a femboy, whether you like it or not, is pretty fetishized on the internet, and selling adult content as a femboy is capitalizing on that fetishization. I mean, the whole OnlyFans market is based on that. So when we see someone selling adult femboy content, what's expected is a guy with a DICK, with a feminine vibe and wearing feminine clothes.
It's fine to sell content as a femboy if you're a trans femboy, but it's no use complaining later when people get on your case, since you sold content based on a bait-and-switch and people found out it was bait. You can sell content by saying you're a trans femboy and not a cis femboy.