We are indeed fetching a bunch of resources from the same server across different streams.

Libp2p allows us to use multiplexing so we can open as many bi-directional streams as we want over a single connection, it's awesome. We use it for Airlock (permission system for the decentralized GitHub).

I understand your point about the OS handling TCP instead of each app handling networking individually, which does make a lot of sense. I wish there were a plug-and-play TCP+TPO+Noise library that could handle multiplexing! Would be a nice addition to include in libp2p.