While I have no doubt that obese people have gradually made appetite control harder for themselves, the full feeling you get on GLP meds is in no way the way us normal-weight people feel.
I too, could easy eat a whole bag of doritos after some pizza and then decide I want ice cream. I don’t do that because I know it’s an awful idea and so I maybe just have a pickle after the pizza instead.
On GLP-1 medications at a decent dose I don’t know if I could force myself to eat anything after half of my normal serving of pizza.
That’s not the way the rest of us normally are apart from rare exceptions, I assure you.