Just a very short comment on Signal discussions:
– Signal already stored encrypted data on their servers for a long time.
– Some people say the strength of the PIN is always "4 digits." This isn't true, you can set a long and strong password.
– Most other messengers (including "alternatives") store your data in cleartext on their servers and require setting passwords, too.
Besides, stay open-minded and don't create a toxic "us vs. them" mentality.
Just a general instance with a catchy name.