Typically I don’t think we need to define when it’s fairly standard terminology. Kind of like having to define something that’s in a dictionary. Though understandable if you are not from the US. This wiki which was top of google may help you though. https://en.m.wikipedia.org/wiki/Types_of_restaurant
You may be overthinking this way too hard. It’s simply the level of service being received. There are some definite shades of gray here but throwing qr codes into the mix is pedantic. You could have fast food QR code ordering, fast casual and even sit down experiences. The QR code does not really factor too much into it.
You may be overthinking this way too hard. It’s simply the level of service being received. There are some definite shades of gray here but throwing qr codes into the mix is pedantic. You could have fast food QR code ordering, fast casual and even sit down experiences. The QR code does not really factor too much into it.