https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8099405/

"Based on this review, there is an extremely low prevalence of regret in transgender patients after GAS."

Additionally:

"Overall, the most common reason for regret was psychosocial circumstances, particularly due to difficulties generated by return to society with the new gender in both social and family enviroments"

and

"Our study has shown a very low percentage of regret in TGNB population after GAS."