I think there are different kinds of gender dysphoria, the kind a trans person has that requires transition is one, plus SA/rape survivors can also experience a form of GD and I think there's a kind of dysphoria that comes from not feeling like you fit into the social expectations of your sex/gender. Those last two would clearly not require medical transition would they? That would likely be therapy and teaching people to accept they don't have to conform to stereotypes.
Also you just said your friend has dysphoria and is taking hormones to change her sex characteristics. That is a form of medically transitioning is it not? If she's happy I wish her all the peace in the world, good for her. I wouldn't tell somebody they are/aren't trans because they didn't want a surgery, no surgery should be undertaken lightly and I would never tell somebody to go through one just because somebody else thinks you should, it should only be done for your own personal reasons. Do I think its a bit weird to not at least WANT GRS if you wish to be the opposite sex, but my experience is not everyone's and I would never claim to speak for everyone. Not everyone has the resources and availability for the same things. I have a close friend who is a trans man who hasnt started hormones yet, is likely some time away from it and I have literally zero problem with using their pronouns, etc. Everything is a personal choice in your own life.
As for your NB they're transgender by the mainstream definition of it but they aren't a transsexual, I wouldn't misgender them and I accept their experience but I wouldn't be able to relate to it much like every NB person I've met, their struggle is entirely different to TS people.
And there's a reason I make the distinction: your NB friend can go back at any time to their former life, change their clothes, grow their hair back (or cut it) etc etc. I can't go back EVER. Your TW friend can't. The part of the trans community affected by everything that's going on in the trans rights debacle the most is binary trans women and men. Is your NB friend affected if they ban medical transition (something a few people here are in favour of, obviously I am not)? No, but we are. Are they affected by what spaces trans people now have to use? I suspect they use the ones for their bio sex. Are they affected by documents being forcibly changed back potentially? I suspect not.
That's why I think the distinction is important, surely if you want to fight for trans rights you should be able to clearly define what it is. Most trans people can't actually explain themselves because they're armed with the magickal and vague language with by TRAs and the mainstream community.
I'm not some totalitarian keeper of the keys to the transsexual empire, I dont spend my time thinking about who and who isn't trans and telling people what to do online it's their business not mine. But i am allowed an opinion on the things that are beginning to directly affect me now.
I'm sorry but where have I misgendered somebody? I don't walk into trans spaces misgendering people, I'd be a hypocrite if I did that. I have a different viewpoint on trans issues, that's why I struggle with them but I do have some trans friends who don't see totally eye to eye with me but we agree and relate on some level.
As per the SC ruling I accept the reasons they came to it and everything thats lead to it, I think it's necessary to try and reset the clock and bring balance back again but that is probably me being naive. I don't know how I feel about how its going to play out in full at this point, honesrly it's still very fresh isn't it? There's still a thousand interpretations of everything out there.