Nikon Z 8 Reference Manual page 222

Location Data
Location data must be downloaded from a smart device or GPS receiver and are displayed only if
embedded in the picture at the time it was taken.
The items listed vary with the smart device or GPS receiver from which the data were acquired.
The location data recorded with videos are those reported at the start of recording.
Note that the camera may be unable to download or display location data from smart devices
depending on the version of the device operating system and/or SnapBridge app used.
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Photo Information