Telegram has never had encrypted groups. Nostr relays don't host media either, they relay the URL of the media host. P2P transmissions also expose both clients to each other. Even if you download a torrent, you're letting everyone know who you are (which is how you get notices from your ISP). There's a lot of misinformation going around today. VPNs, especially commercial ones, are still bound to their host countries laws. If the government really wanted they could compel those companies to give you up. No one is anonymous here. Even people like Edward Snowden. The Russians know exactly where he is and if they wanted to they would extradite him to the US.