I currently use Telegram for my friends and family, but have reluctantly come to the conclusion that the UK Government is either reaching agreement for backdoors with messaging services, or is trying its hardest to.
I’m also on Element/Matrix. Before I try to get my contacts to join me on there, should I be aware of any privacy issues or is that a good place to head?
Definitely host your own node! It’s trivial for a server admin to add a hidden bot to every chat and while it’s still E2EE, an unknown party could still have a copy and key to read it.
Really good talk from DEFCON 32 about the service “Anom” by Joseph Cox (sorry for the lack of a link, at lunch, on mobile and about to get back to work).