This is how the disease will be dismissed. Why bother researching it when you can just blame the victim? It works for ME and endometriosis, and it's far cheaper than diagnosing and treating people.
Individual anecdotes (such as my personal friends who did not change behaviour), while unscientific, paint a similar picture to what is being presented as evidence, so it's an additional data point to consider.
So, at least there is some correlation with the sentiment, and by people whom I know have not adjusted their behaviour. (including myself)
Sweden's restrictions were excessively light, by the way, 8pm closing of restaurants and gyms is not exactly a big deal to people going to the gym after work.
Fitness24/7 in town was so small that it was impossible to get in due to covid retrictions. Something like a maximum of 9 people which meant that it was impossible to get in during popular hours.
Sweden, though, did not lock down, and I hear (and experience) the same issue as the parent.
The first day back after COVID and I reached my max heart rate in 60s of moderate jogging.