Wait till everyone, including audiophools, find out how their super hi-res old recordings are made. :)
Or self-host XMPP server on low-end VPS, it'd cost you few euros a month and you can provide E2EE service to your friends and family. It'll cost less than Threema and you will be in control of your data.
I guess that sucks because I make a living working in cyber security. What do I know, amirite? 🤷