In the past I would pack a D850 and a Z7 for my summer holiday wanderings. The Z7 and the 24-200 did the casual stuff, whilst the D850 and my shift lenses did those moments when I found time to do some serious architectural photography. For "on tripod" photography the D850 is a much nicer camera to use. Aso the Mk1 FTZ converter with its tripod mount, was a pain in the ass for tripod work with the Z7 with F lenses mounted.
Getting the FTZ II changed a lot of things. It does not foul up the Manfrotto tripod QR plates I use. I have a three legged carbon fibre monopod which can replace my heavy tripod if I am patient and let any vibrations die down enough for the IBIS to take care of the rest.
Looks like the D850 might get left at home this year, or will it?