3/ Let's dive into some examples
Many parts of the world are multi-lingual.
For example the mountainous South Tyrol region of Italy 🇮🇹, close to Austria 🇦🇹. Much of the population speaks German, and calls the area Südtirol. In Italian it is the Alto Adige. Pretty much every town, village, and even street in the region has both a German and Italian name.
Similar situations exist in other multi-lingual regions