I hope that guy can achieve some weight loss as that is what actually matters rather than how long he can run for. Obviously the running will get easier when he does lose some. I was never really overweight, but I was getting a gut and that is part of what got me to start running. Now I'm down to something reasonable and just try to stay there. Eating a lot over Xmas, but then I am running each day for now. It's taken me a long time to get to where I can do that.
Here's to great things in 2021.