Here’s some shocking facts: emails aren’t anonymous as a protocol, neither private too, stop trying to find an email like that. VPN as the commercial service isn’t anonymous either, there’s always a “trust us” factor, and in this ever changing world, your policy should be always zero trust. Neither proton, nor mullvad, nor signal, none of these popular platforms provide the anonymity and even the privacy you are expecting. If the protocol itself wasn’t designed with anonymity, privacy, and security in mind, everything follows is just marketing and maybe worse, a honeypot.