Signal is more likely to have more mass appeal. Matrix can bridge just about anything but is (IMHO) a pain to setup the first time. XMPP is reliable and available just about anywhere. I use the first two.
Ask your friends though.
Signal is more likely to have more mass appeal. Matrix can bridge just about anything but is (IMHO) a pain to setup the first time. XMPP is reliable and available just about anywhere. I use the first two.
Ask your friends though.