The switch on this feature has been flipped just a few hours ago.
So currently, none of your photos will have any location names attached to it.
Do this:
In Plex Web go to Settings - Server - Scheduled Tasks
and see if this item appears at the end of the list: “Fetch missing location names for items in photo sections”
If it appears, ‘check’ it (if it isn’t already)
If it does not appear, do first restart your Plex Server
and after a few minutes close your web browser and re-open it and load the web app fresh from this URL: https://app.plex.tv/desktop
Afterwards, ‘edit’ your photo library, go to the ‘Advanced’ tab and verify that “Save location names” is checked
Now you are set.
You can wait for the Server maintenance period
or
you can ‘Refresh Metadata’ for your photo library
Both will start the location-lookup process.
Personally, I recommend going for the first option.
Keep in mind that this will only work for photos which have geographic coordinates embedded in their files. So this requires the camera to have GPS.
