Information reaches all nodes in the same room using a gossip protocol over those point to point networks.
All nodes connecting to a backend or server to communicate would be centralized.
"For our chat room we want to connect all the Bugout instances together in one room. We do that by using the same room name as the first argument."
This will mean all browsers connecting chat together in one room. You can put them in different rooms by passing a different identifier as the first argument.