You're describing an interaction with a good server at a good business. (Off of peak hours, if you can take hours and they don'thave anything to say about it.) What do QR codes add except for technical issues?

I honestly cannot recall the last time a server tried to upsell me with even as much as a "do you want a dessert?". But... I suppose that's selection bias. I only go to restaurants that don't require servers to do that BS. They don't want to do it either, you know?

I would not be at all comfortable, with a human server, making them wait while changing my selection multiple times (no I want it with the ginger sauce... no, without... no actually the sesame sauce... no actually I don't even want that dish, I'll take the other one), googling 10 different unusual ingredients while I make these changes, etc. And especially if I'm part of a larger party that shares food, or with kids, makes it all the more complicated. I just... am not ok with the social cost of it, even if a "good server" would be ok with it. (And who says you'll get a "good" one?). Whereas with digital ordering it's literally just zero-cost button clicks. And zero chance of error. I really don't see how it's even comparable, digital ordering is such a step forward. (Obviously not in all settings, like fancy dining, but for the mainstream).

I won't fall for it. Been down that road and I'm not going back.