I like how people are recommending a bunch of FLOSS messengers now, its an opportunity to check out underrated projects like I just a few minutes ago learned about the FLOSS project Quiet (https://tryquiet.org) from a discord community trying to relocate.
The website says its all E2EE P2P with tor built in, channels like slack/discord, no email or phone number required. Unfortunately no quantum resistant encryption on the roadmap so I still would recommend SimpleX for general purpose instant messaging but Tor-by-default and P2P are genuine advantages over Simplex
If you found this post interesting you might also be interested in these decentralised encrypted messengers with various pros and cons compared to eachother:
Cwtch
https://cwtch.im
http://cwtchim3z2gdsyb27acfc26lup5aqbegjrjsqulzrnkuoalq5h4gmcid.onion/
Briar
https://briarproject.org/
Meshtastic
https://meshtastic.org/
#FLOSS #E2EE #PSA #Privacy #Security #Anonymity #Deniability #Meshtastic #Briar #Cwtch #SimpleX #Quiet #P2P #Tor #Slack #Discord