Buddy, right there with you! Just started ozempic myself too, so a couple things.
That old appetite was really just a dysregulated metabolism talking. It's not normal to suddenly crave an entire bag of candy right after a full healthy meal. Fullness hormones are supposed to kick in once food hits your system, but for us they only ever fired for massive sugary stuff, never for healthy meals. I'm barely five feet tall and sit around 220 pounds. Wasn't about wanting that volume of food, my brain simply wouldn't quiet down until it got exactly what it demanded.
Congrats seriously! Ozempic gets your body finally acting like everyone else's. That's why a chicken salad will actually leave you full now. Hard to trust that after a lifetime of proof otherwise, I know, been there too.