Handling Payment Outside of Meta?

Hi there!

My team and I are wondering how to go about handling payment and customer access on our end vs. through Meta. Take Tennis Sense Arena as an example (https://tennis.sensearena.com/store). You purchase a subscription on their platform, and they give you an access code that you use within the app to gain access to the content. The payment, as well as user access management, appears to be run entirely on their end.

The question is, do they (and apps with similar payment schemes) run their transactions through Meta at any point? Surely, I would expect there to be some routing of payments through Meta, so that Meta can collect its share of the revenues. Or am I missing an alternate process here?

In summary, we're just looking for some insight on the extent to which it is possible/preferrable to handle payments and user access on our end vs. through Meta, or if there is a certain balancing point between the two. Obviously, we are wanting to stay within Meta's regulations in any case.

Many thanks for the help!