From that paper “The mechanism of action of semaglutide in patients with obesity is similar to that of liraglutide — primarily energy intake reduction — but semaglutide has also been shown to improve control of eating and food cravings and reduce preference for fatty, energy-dense foods (6), suggesting that semaglutide may affect food intake via hedonic as well as homeostatic pathways.”

So it does not just make you eat less. You know when you eat so much fatty food at one point you’re like i cant anymore or crave something light. That signalling is mimicked my semaglutide.

Also your body reacts to hunger by shutting down, so you start burning less and you plateau. This does not happen if instead of hunger you feel full. Semaglutide slows the food passing through you so you feel full.