How does the integration with Google Job Search work?

Our client is considering to enable Google Job Search, but I can't find much information on this functionality.

Can we decide ourselves which job requisitions are shared towards Google (for example only a certain job function) or are all jo reqs that are posted automatically posted on Google as well?

Which information (job req fields) is shared towards Google?

If the job req is present in Google Jobs: will there be a button guiding the candidate towards the oracle cloud career site (similar as 'apply with indeed')?