@evan The discoverable attribute in AP will be used for the new search feature.

https://docs.joinmastodon.org/spec/activitypub/#discoverable

Ref: https://github.com/mastodon/mastodon/pull/26344/files#diff-2457149fe8cc9d69412ab716e84165213640f2e782bd11d01915a0ab13f55f0c