Well yes, Ozempic doesn't solve the habits of a bad diet.
The weight rebound is surely due in little part to removal of hunger suppression as in "hormone rebound", but if you resume eating 5000+ kcal/day because you don't have something that keeps you from doing it, you'll end up in the same situation as before. Ozempic was never meant and is not going to fix your diet. That's a psychological and environmental problem.
Not really. Note that it's not taking ozempic for life vs taking nothing for life, but actually taking ozempic for life vs taking ozempic and 5 different medications for life when obesity related illnesses bite you in the ass. So generally ozempic still is "good" pharma (and the plot twist is that almost every pharma is good pharma!).