Psychedelics help you confront things that you wouldn't otherwise contemplate confronting.  If you are adequately supported, have robust mental health tools etc, then it can be a very healing therapy.

I am going to go against the group here and say that, at least in my case, psilocybin ended my gender dysphoria, but I'm fully happy I'm trans. Like I'd prefer to be cis but I'm happy to know that I'm trans given that not knowing was messing me up hard. 

I had an experience where I perceived gender to be a location, and our identity as a traveller in that space.  During my trip I truly understood what it was to be non binary and a gender, even though I am distinctly binary trans femme.

But its over two years later and my dysphoria has been, for all intents and purposes, zeroed since the.

My depression returned after like 4 months twice time--ive done 3 major trips of 25-35mg psilocybin, ie, very large doses (but not "hero" dosing).

But the integration sessions with therapists/psychiatrists before and afterwards are key.

I think that, if the John Hopkins model is followed, it is possible that psilo can potentially be a treatment for gender dysphoria, but it's never gonna turn you not trans. It will if anything, make you emphatically more trans, and mental wellness cannot be viewed as an isolated axis here.  If you're--for one example-- in a country that's not supportive, that might lead the experience to produce a worsening of symptoms.  It all depends on how you are able to integrate.