Still better than being ignored like eg can often happen in German restaurants.
Berlin Mitte: Agree, yes, atrocious service, many arrogant people, no credit cards because of tax fraud (Lived the startup life in Berlin for 20 years, "Monsieur Vuong" was IMHO the worst for service and arrogance - but then there is "Il Pane e le Rose", lovely people, went there for 20 years, or "Restorani Tbilisi", my favorite restaurant in Berlin, most excellent food and service).
Nice city somewhere else: No. Here in Stralsund we go to 5 restaurants regularly. All are nice, have excellent service, people are friendly, prices are fair (But I so miss Georgian food).
Whereas in the US, it’s all about the tips. And once you’re done with your meal, you’re just delaying the next tip.
German service (not just in restaurants) is proverbially bad, even among Germans. See https://de.wikipedia.org/wiki/Servicew%C3%BCste