Perhaps. But I have to think of a friend of mine, who for most of the time I’ve known him has been the epitome of “fat and happy.” Among other things, one of his favorite activities is hiking, and goes on surprisingly long journeys.
Until recently. He fractured his ankle badly on a hike. It wasn’t a freak accident or anything; he just twisted it on a rock or root or something. I’ve always noticed that he hikes carefully, with poles and generally not taking risks, but things happen.
He fractured it badly due to his weight. I’m roughly his height but about half his weight. I would not have fractured my ankle under the same conditions, because there are far lower forces on my bones and I have more muscle mass relative to my weight.
And again because of his weight, it’s been a long healing process that’s not over, and may never be. He could not hike for months, and had to spend time with crutches and wheel things and boots and such. He spent a lot of time in physical therapy. It was painful and expensive, even for someone in a cushy tech job. He’ll probably never be able to go on hikes at the same level again.
So it’s significantly affected his happiness–possibly at a clinical level, though I can’t be sure. Due to something that would either not happen at a healthy weight, or be a relatively minor injury. Weight isn’t all about cardiovascular health.