I lost 50 lbs or so on Mounjaro by the time I reached the maximum dosage. Then, a confluence of supply-chain issues and coverage issues eliminated ALL of it, and within a few short months I had regained all the weight. I finally got coverage again, and supply again (via Zepbound) and began slowly increasing my dosage again.
I'm now at the maximum dose and I've lost exactly 0 pounds from the peak.
So, a warning: Use of this drug seems to be a one-and-done. If you can't keep the weight down after you bottom out and after they take you off the drug, it MAY NOT work again.