The worst thing about QR code menus is that they're often just a paper-sized PDF that you have to pinch and zoom around. If they could design QR code menus like responsive mobile sites inspired by food-ordering apps this wouldn't be an issue, they'd be even better than paper menus.
When I was in China I enjoyed using their mobile menus. A common layout I saw was a narrow vertical bar on the left with categories(appetizers, main, drinks, etc) and cards with photos + details on the right.
https://www.smartshanghai.com/uploads/articles/2019/06/63615...
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