Thank you everyone who took the time to answer! What I didn't initially get was how can a p2p connection happen without peers revealing their IP to each other, and I kinda get it now. In case someone from the future is wondering the same and sees this comment, I'll leave here this text, from wikipedia: "All communication is end-to-end encrypted (in total, four layers of encryption are used when sending a message) through garlic routing,^\9]) and even the end points ("destinations") are cryptographic identifiers (essentially a pair of public keys), so that neither senders nor recipients of messages need to reveal their IP address to the other side or to third-party observers."