A more appropriate drug for this is probably Ozempic/Wegovy (Semaglutide), or an even more effective version available in the US, Tirzepatide. I've personally been on the former and after 4.5 months, I've lost ~20% of my body weight
Surprisingly, metformin seems to be almost a pure win, even for healthy people: https://www.health.harvard.edu/blog/is-metformin-a-wonder-dr...
In contrast, GIP analogues like semaglutaide present real risks and are less well understood. For some people, with serious health problems, GIP analogues make sense. But generally you don't want to be taking them if you're healthy.