Everyone has their own unique story for going through the process. For example, someone close to me believed they were F2M, and mid-transition, learned instead that they actually liked to express themselves as feminine but wanted some features granted by the hormones they took. Once they got what they wanted, they stopped taking hormones. I'm not sure that's the same as a "detransition", but it answered a lot of questions this person had and ended up helping them with their body dysmorphia (which was what the goal was in the first place - not necessarily to fully transition, but to address their discomfort with their own body).

In this case, it seems like this person did fully transition, but they were unable to adapt at first to the transition (largely due to their environment). I'd imagine this kind of story isn't super uncommon for people in environments that won't accept them transitioning, where they feel the need to change themselves back to satisfy society until they can either accept that their environment will reject them, or find an environment that will accept them.