With Signal not releasing their server code and now this, I regret using and asking a good chunk of my base to move to Signal.
Traceable by Google every time you open the App... and using Google's Backup service to store the private keys unencrypted. Well, so much for E2EE.
This combined with what went on with LibreSignal and legal threats from moxie made me realize it's just a company selling privacy claims without proof.
(if you don't think this is true, use AppWarden or decompile the APK. Play Services, Firebase and Recaptcha are still integrated years after LibreSignal was forked.)