Food for thought: Telegram estimated costs for 2021 based on 675 million monthly active users (MAU) are $220 Million. Yet, the app is somehow free to use. Where does the money to cover the costs come from?
At least the story of them being dodgy (in terms of origin/funding) and playing up encryption which is not enabled by default is pretty well documented by now. I get that people really like the UX of the app, but I wish more of them approached Telegram with "Russian gov has access to my unencrypted messages, but maybe the encrypted ones too" mindset.
If that is the case normies living outside of the sphere of Russian influence have little to worry about surely. Better Russia than your own government.