Privacy

I just wish Matrix’s E2EE worked better.

For "real-time communication" for individuals who don't want to maintain their own communication infrastructure, the information around https://www.privacyguides.org/en/real-time-communication/ is surely at least somewhat useful. The recommendations might not be suitable for "government communication" or for people who are capable of setting up and maintaining a lot of infrastructure since I wouldn't describe the infrastructure required as being easy to host independently: it doesn't seem to be easy to set up 3 servers and make it possible to use them to communicate even if something bad happens to the communication network maintained by the original creators of the software. However, the Matrix protocol might be unsuitable for this too, since it is considered to be "social networking software" now, and it is no longer considered to be "great for securing your sensitive communications": https://www.privacyguides.org/en/social-networks/#element