Does anyone actually enjoy working out?

I think there's some people who do but the vast majority of people don't. I mean, if we look statistically, people do very little intentional exercise unless they have to and despite repeated instructions to do more exercise from the government, media, doctors, the amount of people doing exercise hasn't really changed. In fact, it's gotten worse. Compare that to other hobbies or just watching TV or playing video games.

Also regarding exercise highs, clearly some people do get it but there is an extremely strange insistence that everyone can get it if they try and there's not a lot of evidence for this. The majority of studies done on exercise highs are with already fit people who exercised regularly on their own. (And even then some studies had a hard time getting the effect to show up) Comparatively fewer studies are done on unfit, overweight and or obese people to see if they're getting exercise highs at all.

Personally I think that trying to get people to enjoy exercise is setting them up for disappointment. Most people don't like it, that's why they don't do it. I find most of my workouts neutral. A bit like doing a boring assignment at work. I think that's the best way for people to look at it. Imo the key is not to hate it. If you hate what you're doing, definitely change to something else. But if you're consistent and just feel meh about it, I don't think there's any reason to chase some mythical awesome exercise that'll totally make you love working out especially if you already have non physical hobbies you like.