Telegram is ok. Wish I could share the ideas on some sort of decentralized/peer-to-peer Telegram-like messenger. The messages on the messenger should be peer-to-peer/decentralized, immutable, secure, activities fairly transparent, should be privacy-friendly/anonymity-friendly, application open-source/transparent, etc. I should be able to have our messages in a node I fully control. Our message should be throughly encrypted and immutable. The peer would own/have their decryption keys to decrypt their messages.
Note: not investing....just advising/sharing ideas(for free)