He has always been too narrow and small chested. My shoulders are wider and I’m only a gym rat
Your skeleton is about twice as wide as his. Also, 6'5" and 260-270lbs is massive. Phil may weight that much off-season but it's all muscle bought on a credit card. As soon as he gets off the candy even a little, he shrinks like a flannel shirt in the dryer on the max heat setting.
I don't think tall men should use steroids, or at least not like the short ones do. They never end up with the classic stumpy, hanging muscle short BBers do and it's not really worth it since they're already naturally big and fill out a shirt just fine without them.