@gencha

Semaglutide is the active ingredient in Wegovy, Ozempic, and Rybelsus. Semaglutide balances blood sugar (glucose) levels, suppresses your appetite, and promotes a feeling of satiety (fullness) by slowing the emptying of your stomach contents.

So, when stop taking medication, the appetitive suppression and feeling of fullness goes away.

It is possible to keep weight off, but long-term success requires other weight management strategies.

This article has good explanations and hints to keep weight off.
https://www.healthline.com/health/how-to-keep-weight-off-after-semaglutide#how-to-keep-the-weight-off
You might also want to look at following discussion on topic of weight loss medication.
https://connect.mayoclinic.org/discussion/ozempicsaxenda/
Are you currently taking Wegovy or thinking about taking?