Well, if the app is installed, then there's a gajillion methods (GPS, Wifi, etc) For conventional browsers in a desktop environment I'd suspect all the normal

Well, if the app is installed, then there's a gajillion methods (GPS, Wifi, etc) For conventional browsers in a desktop environment I'd suspect all the normal methods of fingerprinting browsers would reveal a lot. And Netflix et al can detect VPNs from a browser, so clearly that's not impossible. I notice that Google Maps on my browser knows where I am despite me using a VPN, but then I'm also logged in to Google on my phone, so maybe it's just tracking my phone location rather than my browser location. Interesting question - anyone know anything definite?