Main repo to Fork syncing not happening with free cloud BitBucket subscription

[Video Guy]

Hi

I subscribed to BitBucket Free Cloud account to manage a school project. I have a main repository created under joe account. Lets call this repo "pdm".

Then pushed skeleton project structure files to master.

John is a team member. John forked "pdm" so that John can manage all his work in his fork. When stuff is ready, John will create a PR from fork to main repo.

I created two branches release/xyz and integration/xyz in main repo.

When John checks out his repo, John is seeing "master" only in his repo. release or integration branches are not showing up.

Wondering why?

I googled and looked at others asking the same question. I don't see any of those solutions applicable because those menu options are not visible.

If Forks are setup for automatic syncing, shouldn't the branches and any commits in those branches flow down from main repo to forks automatically?