... I probably won't pass until I get FFS I might as well say I am a femboy in the meantime, this way I can pretend to be a man and still wear what I want?

I bet you look way more feminine than you think you do considering they think you are a femboy despite your current masc presentation.

Also, do your friends think femboys are cool? They might be more accepting than you think. It's entirely up to you if you want to come out to them, but like that other commenter said, you could temporarily identify as a femboy to ease into coming out as a trans woman.

Most Discord communities are toxic. That being said...

People will give you shit for whatever reason. Only winning move is not giving a fuck.

It is hard but if you work towards something, work towards that and not the acceptance of people who are more interested in their opinion about you instead of you as a person.

I am not trans and I have no experience with this sort of thing, however femboy might be a safe transitionary identity for you. That is of course, assuming you are comfortable with the label.

However, this is just an observation from an outsider. I am sure someone more qualified will have a betyder answer than me

It's up to you ultimately. I never identified as a femboy, but I also transitioned long before that label took off. I would be uncomfortable being seen or treated as anything other than a woman, personally. And imo it's better to rip that bandaid off. If they were transphobic they would likely not be enthusiastic about gnc men. But then it depends on the community. Is transphobia normally tolerated there? If not, I'd say you should go for it.

I guess it depends how your emotions resolve. If you don't want to be seen as a boy/man, then you can ask them to stop calling you that without elaborating further. I personally would not have friends or continue to stay in a space where people didn't respect my identity, pronouns, or whatever label I choose for myself.

For my transition I'm not looking to be seen as or called a boy - period, so being called a femboy would cause me the same pangs as being misgendered.

I think the thing I would think about is if you're okay with people deciding who you are. Sure, there's some affirmation as they see you as feminine, but once you open up to these people about your goals, will they respect you or continue to call you something that doesn't align with your transition.

Take it as validation I guess?

Still, if it annoys you, tell them to piss off.

It's far more healthy for the people in this situation to not concern themselves with what others think they are, but I know that's not easy. If they aren't using the term in a negative light then they might truly think they're being endearing.

or, in lieu of my previous advice, you could pull him aside, or text him separately, and just politely ask him to stop calling you a femboy. if he asks why, "because I asked you to".

I would tell that guy off, personally. "how's about you keep your opinions of what I am to yourself. if I want to tell you about a change, I'll tell you"

if people think you are a femboy there is a high chance that you pass as a woman