How did Facebook know where I am when I don't use the app and I have all permissions denied AND I'm using an ip changer?

Setup...

OS: Gr......OS

Profile A: Fb pwa. Acc created with a pseudonym on a public computer with the sole purpose of browsing the marketplace. So no friends and completely blank profile. I did absolutely nothing on it except search for an item to see how much it's going for...didn't add anyone, look up anyone, join anything, like anything, comment, message...nothing. I used a burner specifically for this account. Didn't install the app on my phone but rather the pwa. I …

acc app browsing computer don facebook friends marketplace permissions privacy profile pseudonym public purpose pwa