If they’re like me, they subscribe to those through the various apps from the app store, such that Apple is the processor for them. It means paying more typically, but it’s worth it for me to have as many of my subs as possible in one place, easy to cancel and easy to resubscribe.
I chose examples that I basically don't see in the App Store. I have a NIntendo Online subscription and an Amazon unlimited subscription, and don't expect it will ever be integrated.
