Here is a comprehensive guide explaining how Facebook location data works, how to find public location clues, and how to safeguard your own privacy. 1. Public Clues on the Facebook Profile
For the remaining 10% who use VPNs, disable location, and never click links, you will need a court order or physical surveillance.
Since Facebook compresses images heavily, this works mostly for images sent as file attachments rather than inline.
You can often find general location data (city, country, or region) using digital footprints, open-source intelligence (OSINT), and authorized third-party tools.