I'm not sure you are right about this. The following link will stream big buck bunny directly from the network with full P2P support. It is not using a gateway node for the video content.

https://bbb.fu.io/

You can run the following in the console to see all your peers

    for await (const peer of await node.swarm.peers()) { console.log(peer.addr.toString()) }

The console currently get's spammed pretty hard because they haven't implemented filtering out plain ws (non-wss) peers if you are connecting https. But it will use webrtc to find peers, and find all wss nodes in the network.