Ah idk, im not gonna talk about how accurate this is from a trans point of view since im not trans, but im not cis either (and afab while at it) so it still left a bad after taste in my mouth. I'll talk about more general things instead.
First off, it seems this manga suffers from the very same thing most manga about trans characters written by cisgender people suffer, which is a very dragging negativity. Not to say hardships aren't part of what comes with existing as someone out of the binary gender, but now that there's more trans authors coming forth with their own stories, and despite their many different life stories, you truly realize how fundamentally different they are from stuff like this. Trans stories told by trans people tell you that there are ways to reach happiness and be yourself. But stories like this told by cis people are always suffocating, they make you feel trapped, like there's no way out of conformity, and they ultimately still see trans people as an experiment of sorts or the romanization of martyr pain (which is ironic since there's an obvious self insert character that does that... but anyway). They see trans people as troubled and impossible individuals, and so no matter how deep they try to dive in their psyche, they'll never get what existing and being happy is about for non cis people.
Although the author was very ambitious about this story, and i had good hopes for it, i ended up feeling awful by the end of it, as you could tell this wasnt for lgbtq people but a messy attempt to write about them. Sometimes it's better to not try writing about some things at all! Instead id recommend to support trans and gender x mangaka even harder, since their chances to tell real stories wind up being stolen by situations like this.