This is one reason why I’d rather get delivery from DD/GH/UE instead of calling for delivery (if it’s even offered)…I don’t want to give my credit card over the phone.
I’d much rather do it through an established app/storefront (I.e. Square or Toast).
That, and anxiety. I really don’t want to talk about my pizza. Much rather press a button.
Sadly the only way to contactlessly pay with your phone is Google Pay, Apple Pay or maybe Samsung pay at least where I love. And I don't trust any of those companies. There is no other open source standard implementation and you can't even just use your bank's app.