I'm going to reply issue a correction to myself. I now get what the point that the original post was making. Al Bello is indeed a staff photog at Getty and does indeed use Canon gear. So the collection of photos that he has uploaded is of unique interest.I don't think the assumption that all photographers shooting for Getty are automatically using Canon holds true.
I just checked their site for Olympic photos...there are several by one photographer, François-Xavier Marit, of AF-P. He is a Nikon shooter. He tags a lot of his IG photos with #nikon and #nikonfr.
Nikon featured him a while back in an article on their global NPS website:
And indeed, many of his images are exactly 24MP.
So I think that while those directly employed by Getty may only use Canon, perhaps they also contract out to others for some of their work.
But regardless, the assumption that all photos of the Olympics offered by Getty Images are taken with Canon is incorrect.
So while not all Getty photos are taken with Canon gear, all photos by that one photographer, Al Bello are taken with Canon gear. And that means something. Sorry for the confusion.