Berlin here. A lot of the suburbs and villages just an hour north in Brandenburg don't even have 3g, forget 4g. And we're not just talking spotty coverage, there's just nothing, you'd be lucky to check your email.
French here, living in Dijon, a regional major city, 2 hours from Paris. I live in city center, and I still only listen to downloaded content in my spotify app, because if I listen to it online while on the move, there's always a point when it will lag or just stop.
Providers tell the whole city is covered by 4g. In reality, as soon as you move, sometime you'll have it, sometime you won't. Friends report the same thing in other cities with other providers.
Really no; connectivity is horrible in many places throughout the world. You don't have to venture far from most cities to experience bad or dropped connections. All over the planet. Exactly why I always fall back to apps which are written with bad connectivity in mind. Forget the web there for now; it's horrible in those locations.
I'm not talking about the Appalachian coal hills here, I'm talking 20 minutes out of a metro area. I live in a decently sized city and I'm lucky if I have three bars.