The FBI is monitoring users - it's not a secret for a long time. Enough information has already leaked to the network to make it clear that this is not just a conspiracy theory. But, to be honest, I was surprised that each of the supposedly reliable messengers leaks data to the authorities. I was also surprised that I did not see the Utopia P2P https://u.is/en/ in the document. Maybe the only reliable application is one that stands for freedom of speech and anonymity and does not obey the authorities?
I can also recommend paying attention to the decentralized p2p ecosystem Utopia p2p. Its developers have released a private coin Сrypton and recently released a stablecoin UUSD https://u.is/en/currencies.html . Therefore, this project is very well suited for anonymous transactions.
I can advise you to pay attention to the new stablecoin from the Utopia of p2p https://u.is/en/currencies.html. Paired with the Crypton coin, they are the most reliable and secure project in 2021.