When searching the docs all the protobuf entries show up twice with little indication that one is V2 and the other is V3 (besides a small reference in the preview text):

(https://www.envoyproxy.io/docs/envoy/latest/search.html?q=cluster&area=default#)

It would be nice to better indicate what the difference between these results are