What do you mean? If purchases are directed to a developers own payment system I don’t have a choice, I cannot force that developer to use Apples payment system can I?

You have the same choice developers had: their way or the highway.

Though, developers would be likely to:

- choose established and trusted payment processors (like PayPal or Stripe) rather than rolling their own solution or a small unknown payment processor, and

- offer many processors and let the user choose

The ruling is that Apple cannot forbid linking to other payment methods _in addition to_ IAP, not _instead of_. Apple can still require that IAP must be one of the options.

I don't see anything to suggest apple cannot force apps to offer apple pay as an option. Only that they cannot force apps to make apple pay the only option.