Makes me think that at some point showing a restaurant menu with prices is soon going to get the ire of Apple for suggesting an offline monetization that they aren’t a part of.
https://www.wsj.com/articles/google-loses-key-mobile-payment...
https://venturebeat.com/2018/05/10/apple-pay-credit-card-is-...
Individual retailers do not form an agreement with Apple. Hell, retailers often don't even explicitly and individually support Apple Pay, it just comes through accepting standard contactless payments.
You can sell a paper book, but an e-book gets 30% Apple tax. You can sell a CD, but an MP3 gets Apple tax. You can sell Carcasone game on cardboard pieces, but an app version must give Apple a cut.