Yes, you found an example of the 1 percent that regrets the surgery. Otherwise, 99% are happy.
https://pmc.ncbi.nlm.nih.gov/articles/PMC8099405/#:~:text=A total of 27 studies,Kuiper and Cohen-Kettenis classification.
"A total of 27 studies, pooling 7928 transgender patients who underwent any type of GAS, were included. The pooled prevalence of regret after GAS was 1% (95% CI <1%–2%). Overall, 33% underwent transmasculine procedures and 67% transfemenine procedures. The prevalence of regret among patients undergoing transmasculine and transfemenine surgeries was <1% (IC <1%–<1%) and 1% (CI <1%–2%), respectively. A total of 77 patients regretted having had GAS. Twenty-eight had minor and 34 had major regret based on Pfäfflin’s regret classification. The majority had clear regret based on Kuiper and Cohen-Kettenis classification."