My recommendation is to simply find something active that you enjoy doing, and that's physically demanding, preferably where people you might like to meet hang out for 3 or more hours a week. That's pretty much it, because if you think about it, it probably would help resolve a lot of the things that encourage most people to eat excessively, like depression, boredom, hopelessness, and it also helps you get in shape ideally and away from the fucking screen. Doesn't have to be a gym; gym people like gyms. You might be a gym person, but you have to try things out for a few months before you know. It's ok to move on, people have different preferences. I've never been overweight, but I have been lonely and lazy enough to get there. If you have intense social anxiety, either build up to whatever it is you choose to do, or find a more solitary physical activity. Running is fine, but tbh you're either a running person or it takes way more effort than something else might, and exercise isn't as productive for weight loss as just not eating anyway.

Most people who don't workout have this binary idea of what that means. You either go to the gym or do nothing. But the gym sucks for ppl who don't like it, and there are so many other activities out there.