Discord got banned in Russia. While I hate government regulations I kinda glad that these blocks can lead people towards unblockable means of communication. Of course all of them are free software. At least try XMPP, Jami, Tox or something like that. If you play games there are Teamspeak and Mumble.

Sadly I myself is still present in Telegram and it is hard to leave some things because your friends, family and so on use that. The bright side is that Telegram has API and emacs client at least.