Private repositories on GitHub

Question

git

There was such a question. We are developing a small product, now we are hosting on Bitbucket. I want to switch to github. In this connection, the question arose about private repositories.
There are tariff plans for companies and individuals. If an individual creates a private repository, another person will fork the repository. The fork will also remain hidden or it will be open. It is necessary that the forks that developers make are not displayed to third parties. If I understand correctly, then you still need to take an account for companies, add users to it, and after that it will be possible to make hidden forks.

Answer 1

A hidden fork can only be made to a paid account.
As far as I understand, you want to create a Pull Request using forks?
If so, then this is no longer needed - now you can create PRs inside the repository between branches.
So we have enough paid account for organizations.

Answer 2

Why would internal developers fork? They can also use the standard git branching model...