Earlier quoted context omitted.
Yeah, this is a nice selection of European cities to compare! Having lived in Berlin and Stockholm (and a few other cities), I'd say Stockholm has by far the worst kebab options of all places I've lived, while Berlin was the best one. I'm curious whether this is reflected in local reviews, or whether the locals just lower or heighten their standards based on the what the average food quality is like.
Berlin shouldn't be a surprise, because the Kebap Sandwich was invented here (at least according to some sources: https://berlinexperiences.com/was-the-doner-kebab-invented-i... ) Before that, Kebap was a dish served on a plate, taken in a seated manner.
Verdict
NO
The Döner Kebab was not invented in Berlin.
Popularised here? Ok.
But there are no participation trophies for that.
And they're correct. After all, you have not experienced döner kebap until you have tasted the original Klingon jIrtaH ghab.