He’s fat.
I agree. He looks like he put on a lot of weight but it hasn't yet distributed back to his face and arms.
Formerly fat bodies regain weight very easily and don't like to give it back once it's packed back on. Over-eating from Thanksgiving on and through New Years, and it's easy to lose control for the person with a binge personality.
I'm speaking as a person who made that mistake the first time I lost weight.