This realistically plays out as a long-haul, probably permanent treatment, unless there wasn't much excess weight to begin with. Solid long-term data specifically on this newer compound is still thin, but the other two established options in this drug class both show remarkably positive long-term effects, and those benefits will almost certainly extend to this one too, so staying on it isn't harmful, it cuts the risk of type 2 diabetes, elevated blood pressure, poor cholesterol numbers, heart disease, strokes, certain cancers, maybe even cognitive decline, and generally the heavier, older, and less healthy someone starts out, the bigger these effects tend to be. There's even some evidence from cellular aging marker research suggesting it might slow down how fast the body actually ages.
So for anyone overweight with health issues or obesity, staying on it is genuinely beneficial, and for those at elevated risk, higher amounts tend to outperform smaller ones. Beyond all that, ideally with this compound or any option in this drug class, the goal is really only losing the weight once, then staying on it just to hold that line, it's nearly that straightforward. Most people who stop after losing weight end up regaining it. Some prefer lower maintenance amounts, which works fine if side effects are a concern.