I’m aware of tails, but I am not confident it qualifies. With Tails, I still connect through my own Internet connection, presumably. I know using tor obfuscates this, but is it to the degree of, say, Monero?
Moreover, I am still at the mercy of the platform I use. Most of them require email or phone verification, and creating an account with lots of data sent over from the clients.
Tails is a necessary component, but the platform is also important.