Rather than added muscle(he doesn't seem to have added an egregious amount since last year), I wonder how much having to practice with team USA, travel with them and play with them, all while once again staying within a strict Covid protocol affected him.
He played deep into the bubble, had an extremely abbreviated off-season, played a condensed schedule season where he got Covid, played and practiced extensively with Team USA, worked hard in the gym to get bigger, and now looks lethargic.
Could it be that as a 22-24 year old young man, he has not given himself an extended recovery period at all over the last 2+ years and it's now catching up to him?