Bittorrent protocol is not supported in browsers. Peertube uses Webtorrent, which is a WebRTC port of the Bittorrent protocol. Those two networks are incompatible but the magnet hashes are the same and there is progress in desktop clients implementing Webtorrent peering.

You can try to think of Peertube as Popcorn Time with user following and channels and comments... and interop with the rest of the Fediverse.