One conclusion of this video review is the interesting point of how the Z9 demonstrates Nikon is not holding back with FX MILC specs, because they have no cinema cameras to protect from becoming obsolescent. bottom line it does indeed sound like the Z9 is the best video ILC released to date.
https://youtu.be/NGo7nfc31r4The final 3 minutes are a pithy synopsis of Nikon's status and trajectory to their new status with best ever Nikkor lenses, best video in ILCs, and the best flagship ILC ever made. Finally, kudos to the reviewer who makes strenuous efforts to take such a camera out into the wild. He not only had the Z9 up on the Northern Japanese Alps, but exposed and working in extreme climes.... These landscapes are definitely a beautiful place to visit.
This young lad must be a prominent personality in Japan, considering Nikon gave him a prototype for 1 month (+ a beta release of NX Studio). He is clearly experienced, with previous Nikon MILCs (since starting off a few years ago with a D90!). Interesting he found a few unfamiliar features using a Nikon pro flagship ILC for the first time: including ENEL18's and the size/weight; but he found his fear about the Z9 being too heavy had been a storm in a yunomi. As this was released on 28 Oct, we have since left key uncertainties behind us: including optimal cards, EVF performance, "which ENEL18* versions?", concerns about battery life etc etc.
Yet again (as with D5 and D6) it is clear Nikon has designed the Z9 to NASA's standards. This applies particularly to no issues with overheating in hot climates nor freezing up in hypothermic conditions, from +35 C down to -20C in 20m/sec winds, when an actioncam froze (despite trying to keep it warm)...and at the time he was using a well worn obsolete ENEL18a from Nikon Japan
(This video might have been shared last month, or even on 28 October. This is in Japanese but it has coherent subtitles.)