It sounds like the medication is an important part of this plan. Is it something that you anticipate someone would take indefinitely, or only to get down to a target weight? Also, can you give some ELI5 background on how the medication works in the body?
The papers show consistent weight loss for ~52 weeks, then plateauing off onto 68 weeks. If you suddenly stop taking the medication, the weight creeps back on. The research therefore suggests you can likely slowly taper off the medication after year 1, but with medical supervision to ensure that doesn't lead to weight gain. This is also why improved mindset & habits are also important.
https://www.nejm.org/doi/full/10.1056/NEJMoa2032183
ELI5: increases satiety, decreases appetite.