"Wait, what? How can you be trans and not have gender dysphoria?"
Great questions, Errors.
"Also, if it’s not classed as a mental disorder in the first place, how can you access treatment for it?"
It is known as Gender Affirming Care after all.
Nothing in that name to say that it is only to treat gender dysphoria and that it cannot be purely elective because that is what some people want. And at the moment, I believe that some of these treatments are available on the NHS, even though if being transgender does not require any gender dysphoria, I would think that would make it just elective extreme body modifications. But I could be wrong.