Having thoughts around instances of regret re trans transitioning, however unusual that may be.
Obviously some people may have stuff that simply goes wrong, like a surgery that ends with complications or bad side effects that make the person wonder if it was worth it - that's true of any medical treatment.
Other people may have exaggerated expectations of what it will achieve - perhaps they won't have dysphoria (as much) anymore and can look more happily in the mirror, but pre-existing depression, anxiety and PTSD from years of mistreatment (and shitty people still being shitty) probably won't be so easily solved.
But I think some people also get fucked over by the notion of gender being binary. They know their AGAB doesn't fit, so society makes them think (if anything) they must be the 'opposite'. So they put themselves through all of the treatments and surgeries to fit that ideal... to discover that also does not fit them. And then they think the grass must have been greener back on the other side and/or they were young and stupid when they chose to transition (and potentially jump to the conclusion that all trans people are similarly wrong to transition 👀).
But in actual fact, neither was good, they just needed to find the right place between/outside of those. To listen to their bodies and minds about what they needed to be content, not just follow roadmaps created by others. Whether that involved hormones or not, surgery or not.
Like me, for example: I don't feel like a woman, I don't feel like a man. I'll often go along with woman stuff out of being accustomed to that and too tired to fight, but my ideal body would probably be entirely sexless. And with my extensive health problems I'm not about to add hormones and surgery that won't fix them. So I just do what I can and want to with what I have.
Admittedly it'll be difficult for others, especially where other people gatekeep their options, like if doctors will only let you have <x> if you also do <y>, but listening to yourself instead of societal expectations is typically going to be one of the best ways to curate your own happiness and contentment in life.
Stay strong trans friends, I believe in you ❤