It is very strange to see Telegram in this list, which does not appear in any security rating, and has been criticized by all security specialists and cryptographers for the lack of end-to-end encryption by default and the complete absence of encryption in group chats, and for using MTProto, about which it is written here:
https://www.protectstar.com/en/blog/telegram-encryption
Even in Russia, where Telegram is particularly popular, political activists do not recommend its use
And now Telegram reveals to your chat partner registration date and country of the SIM when starting a personal chat after a recent update. What privacy and anonymity can we talk about?
At the same time, No secure private messenger without email and phone registration is mentioned. Nor is any quantum-resistant messenger, such as Simplex
But if this topic isn’t discussed, sorry for taking your time