Earlier quoted context omitted.
As an American that visits Germany, I absolutely hate how eating at a restaurant is seen by many as an event where you hang out forever, as opposed to a routine service I expect as a fairly quick and formulaic pitstop between other obligations. There seems to be no difference between classes of dining out, in this regard. I also suspect you are out of touch. QR code menus and payments were not a thing in the US befor…
As i mentioned: No dining out after March 2020... but this will change next month (finally). Your observation is correct: Many germans like to stay in an restaurant es an event , not just to eat something quick ... for this purpose there are tons of Pommesbuden, bakerys or Dönerläden.
Is that something that very much depends on the region, or a personal obligation? I've eaten in restaurants in Hamburg, Berlin and Munich during pandemic (summertime last year until about November, and since June this year). Eating this year has been limited to outdoors, but that's fine.
(None have had this crazy QR code link menu idea. I have always received a traditional menu and ordered by asking the staff what I want at the appropriate time.)