I have a VPN that uses a service based in a country with no-log and no-track laws that are specifically antithetical to surveillance-heavy state policies like those in the USA, GB, and Germany. The service is a premium one that has a plethora of features, but limits to 5 devices total per account before you have to set up a new one.
So far, I have used it on one device, and intend to use a second on a virtual machine with a spoofed MAC that is designed for Tor browsing. I'm aware that each device which uses the account is inextricably linked at the VPN service, although this isn't really a problem because they don't log activity. I'm also aware that the moment you log into a personal account, like using an OpenID or Facebook account, you've completely thrown all reason to have a VPN out the window.
My question is, can one safely use a VPN for anonymity via a cellular phone, ever? By its nature, it hemorrhages personal data on a regular basis, and requires a sign-in to a Google or Apple account just to function. It also communicates location data, even if that feature is disabled, because it's required just for a cell tower to pick you up.
If you CAN use a VPN with a mobile phone to browse and download anonymously, how do you shield yourself from it breaking your anonymity during browsing or downloads? If you can't, I just won't waste one of my device registers...