So very rough estimate:

25 miles of biking is somewhere in the world of 400ish Calories.

If you were doing that and not losing weight, you were eating 400ish excess Calories on average.

That's the equivalent of a single packet of Ramen, or about 4 Oreo cookies. Food is extremely energy dense.

Exercise, especially using efficient means like biking or running or walking, just isn't that effective. You need caloric restriction to make any ground for the majority of people.

>But it should help temper the fat and diet shaming that exists in society.

Why would it? Factually, if Ozempic and similar solved your weight issues, it directly means you were eating "too much" food. People who see that as a personal failing will continue to do so, and will see Ozempic as enabling "weak willed" people, or a crutch for "lesser" people.

It doesn't really affect your point, but biking 25 miles is going to burn more than 400 calories. Probably double or triple that, depending on their weight and the workout intensity.