This is the purest end goal though, if you've got a large monolith or you directly consume a shared backend with a large number of teams, how do you get there? BFF is just one attempt to decouple with another layer of abstraction. Eventually you can strangle the problem on the backend.
CDC on that backend would be one way. You could stream the data out to the various teams who could then materialise a view of it within their application and then craft an API over that view.
