I think "the peer web" and "decentralized web" / "dweb" are emerging terms that are trying to describe all of the efforts to make software work peer-to-peer without centralized servers.

e.g.

1. https://www.inkandswitch.com/local-first.html

2. http://thaliproject.org/

3. https://briarproject.org/

4. https://beakerbrowser.com/

5. https://blockstack.org/

Would PeerTube and Mastodon be considered decentralized?:

6. https://joinpeertube.org

7. https://mastodon.social

I am referring to https://peerweb.com, an in-development project of mine. There are no public-facing docs at the moment, but I will be providing updates on my Twitter.