@nickale So, speaking as a fellow fat person...
Walking really is the thing to do.
Have some super padded shoes since your feet will hurt due to your weight. Have some lycra shorts since your thighs will chafe. Have a bottle for water and sunglasses. That's really it.
Just walk. Not stroll, walk w/ a more-than-casual pace. Start small, but keep doing it.
As a fat man, walking is a full-body exercise.
From there, also do the Alexa 7-minute workout or a similar app. They're short, but very effective. Don't like the exact exercise they're doing? Find something else easy for that body part and do that for 30 seconds.
No weights needed.
It
is as easy as bodyweight squats, pushups on your knees, flutter kicks, unweighted shoulder press, a few crunches, etcetera.
I can work w/ you on some details if you want, but just walk. Start small, work up to a few miles. I got myself up to 11 mile walks last year, and am trying to get back there again this year. I was still fat, yeah, but better than I had started and I had some endurance. And this year? Even though I petered out early last year and did almost nothing through the winter, I'm getting it back quickly.
Just walk.
Good luck!