Tor at least but there’s likely more. also rumor in the internet goes (and looking to be correct if misguided) the us government identifies its citizens that dl Tor
That's nonsense. There are somewhere between 2 and 8 million users of Tor every day. The vast majority of Tor users are ordinary people that want a little more privacy. What a waste of resources it would be to try to identify and track each of them.
