I really despise when the QR code just sends you to the App Store to download some (crappy, probably web-to-native) app, where you have to create an account, verify your email, then add credit card details manually. Extra points off if there's no wifi and the venue is somewhere with poor signal, so it takes 10 minutes and rinses my battery.
A web-based menu that just opens the browser and lets me pay with Apple Pay is acceptable given the current circumstances.
I dislike having several single-use apps for random pubs and restaurants cluttering my phone.
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