@matpacker FWIW, I only* ever used Facebook on the desktop, and my location
and your_places
folders contain only a text file stating I have no data in that section, so it appears they can’t snoop on your every daily move via the web. That said, they do have the IP of every login/out/account update since January 2017 (in the security_and_login_information
folder), so they can correlate that to a vague location, but at least only when using the site.
As I recall, you can set a preference so that people cannot tag you in photos without your approval; I don’t know if there is an equivalent setting for posts or groups (you can, however, prevent posts you are tagged in from automatically showing up on your wall/profile—or whatever the term is today for the view showing all the posts you’ve made).
* I logged in to the site via the web on my phone once 4-5 years ago to get my password stored on the phone in case I ever needed to log in from there in an emergency.