What payments are you talking about? Apple doesn’t charge transaction fees for Apple Pay.
Systems using your NFC chip like clipper don’t work through Apple Pay. My understanding is organisations building apps using the iPhone nfc chip like that have to pay apple millions for the privilege. On android the equivalent api is free and open.
My understanding is whenever you make a payment a myriad of companies get paid. I would assume Google is one of those?
That doesn't change wether or not NFC is open of course.