For a moment I thought this was with GFX50s It's actually with the Nikon D850. I had taken shots that day with both and had the slighly wider lens on the Nikon which was a loaner. From my few weeks with the Nikon, I can say that it's a great Nikon DSLR with everything they could throw at it which is cool. The sensor on it delivers excellent image quality and in my totally non-technical dynamic range tests, it outperforms the Sony A7RIII for shadow recovery.
One negative I found was the buffer (this can also be seen in Matt Grangers tests with the cam) which isn't that great. My full non-technical take on the D850 to come soon. Cheers