Basically, simulating a WebRTC call allows a user to access the Tor network in a country where connections are monitored. Through NAT Traversal two users are brought into communication without opening any ports to the outside of the network

https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/wikis/Technical Overview

Interesting, thank you

Do you mean file sharing like torrents?

Use a VPN like ProvonVPN