It really is a sad situation. As an American who spent the first 30 years of life in the US and over 20 in Europe, the difference is striking. However... here in the UK I see more and more "American-sized" people every year. _Something_ is changing. In the food and/or habits of the average Brit.
Anecdotally I would say Europeans as whole are getting ever so slighty larger. But just not at the rate as Americans. Ozempic seems like a god-send.