SimpleX is the answer, not session.
http://blog.nowherejezfoltodf4jiyl6r56jnzintap5vyjlia7fkirfsnfizflqd.onion/opsec/anonsimplex/index.html
Privacy:
The application must be free and open source (FOSS)
The application must have End to End Encryption by default (E2EE)
The application must allow us to run and use our own servers (Decentralisation)
Anonymity:
The application must support Tor .onion servers out of the box
The application must allow you to chat without requiring any information (no emails, no usernames, no phone numbers)
The application must have the ability for us to join chatrooms without revealing our identity (Incognito Mode)
Deniability:
The application must have disappearing messages (Deniability)
Most of the people on dread are retards.
They will read an article somewhere from someone and take it for granted for the rest of their lives without making their own research on the matter.
And yes, I say this as someone who previously used Session before realizing this.