Agree. Its better to use webhooks as a pure signal that something has changed, and then in the case of update or insert, have the client pull whatever they want

Agree. Its better to use webhooks as a pure signal that something has changed, and then in the case of update or insert, have the client pull whatever they want using normal API. Otherwise, you end up in a descending vortex of madness trying to specify some protocol whereby the client can specify in advance which properties they care about.