Do you really think there's any privacy in these phone messengers?
I would recommend you to listen to public lectures of IT security specialists.
Your camera, microphone, desktop in your phone can transmit your data at any time, and you talk about privacy.
Do you think that your internet connection is not being monitored? Unless you come out with a justified argument it is understood that you are being monitored after using multiple ways to hide yourself from the internet. None of us can hide from them but we have someone who was trying his level best and was better than WhatsApp. Frankly, I expected you to reply better when we discussed an application that helps us chat. I mean we have gone past those days when we could hide ourselves with VPN or use TOR browser as they as in the government have already found solutions to counter your lookout about this issue.
I hope you understand that Telegram was the one app that was supposed to not look into chats. By what he has done now every chat will be monitored and you can not hide from the government or those who are controlling the world. It is not good news for me but it will a bad news for your country as Russia will be the country to suffer more.
I know of a few other apps that have good private email security with encryption. Signal,Threema, Briar and others. I don't think it's a big problem for Russia. It's very expensive to keep track of everybody.