The Tor project’s Snowflake proxy web extension utilizes the WebRTC (Web Real-Time Communication) protocol, the same technology that’s used by Skype, Zoom or any other peer-to-peer web connection.
“From the perspective of your ISP it will look like you are connecting to a Tor bridge, which if you are running a Snowflake proxy should be legal and unrestricted in your country. There is no more risk running a Snowflake proxy than running Tor browser.”
You can learn more about the Snowflake proxy web extension at https://snowflake.torproject.org/
Additionally, you can take a deeper dive by checking out the technical overview