Yeah, there's no doubt he's a massive dude. But I've suspected this for a long time.
Even Wilder, who weighed at most 220-225 and was most effective at 215, would look like a string bean at 6'7" yet he had a heavily muscled upper body. Also I seem to remember Fury being only a shade taller than Wilder when they fought.
On a side note Fury beat Klitschko in 2015. He's only had a small handful of fights since then. It's easy to forget how long he's been at the top. This thing with Nganbo or whatever the hell his name is, could blow up in Fury's face.