As far as I can tell, the intended meaning of the question in the title is "how long until everyone who wants Ozempic can have it?".

But at first I read it in a more cynical and sinister way, the more literal interpretation - how long until everyone is on weight loss drugs?

In a world where such medications are normalized, fast-food/processed-food companies might just work harder to make their products more addictive and pervasive, and then we're all back to square one.