Sorry, but Nostr is not privacy centric. While it is resilient against censorship, but even the gift wraps leak the destination of the message, ips, the volume of messages being received and where they are being stored.

I wrote a solution for a totally stealth protocol for nostr DMs, but it lacks a client adopting it. https://github.com/eddieoz/nostr-stealth

eddieoz

Tox is equally, perhaps more secure, and definitely more private.

Solomonsatoshi

privacy

Telegram's Privacy Mirage: Why You Should Stop Using It Now

NOSTR

That is the solution. There is no other. The only thing left would be the bandwidth issue, which could be a problem for some countries. But there are solutions with relays, but there is no centralization, there is no censorship. If one relay blocks you, you have others. Who is the CEO, the community.