It is compromised by Russian connections though
Or did I get that wrong?
All of this has been public information since years, there isn’t any proof of anything malevolent happening with the service.
https://en.wikipedia.org/wiki/Telegram_(software)#Developmen...
https://en.wikipedia.org/wiki/Blocking_of_Telegram_in_Russia
IMHO - it would not be possible for him to leave russia alive without getting some tradeoff with Russian intelligence