[ultrafez]

On the whole, I agree that the adoption of QR codes more widely is a good thing - they are a useful tool to solve a certain class of problems, but in pre-COVID times, they often weren't practical as only a small proportion of people would know how to use one, making it not a viable option to solve the problem.

However, one downside of mobile phone ordering is that it has made the ordering process significantly less streamlined. Some restaurants/bars require you to install an app, some are fully web-based (good) but require you to register, but only some of them are web-based, don't ask for more information than is required, and integrate well with fast/easy payment systems (such as Google Pay or Apple Pay).