Few of my friends decided to leave the Facebook and it's Messenger or Whatsapp apps. But they also decided to move to other proprietary and closed software like Signal.
Please if you make this brave decision, choose wisely. Something decentralized and open like #XMPP or
#Matrix.
These are not apps, these are protocols witch many apps can use. You can than choose app you like. For example on Andorid there is
Conversations or Snikket for xmpp, or Element for Matrix...
@stepan Yes. An open protocol and decentralised is the important bit. Whether clients are proprietary is less important. Remember, some email clients such as Outlook are proprietary, yet still email is open and not affected by some individuals choice.