My cell provider is from Austria, thatâs correct.
I donât think the cell provider matters, in this case. The App Store is connected to the Apple ID and shows content for the country youâve chosen, and the language you prefer.
Itâs possible to get an Apple ID for another country than the one youâre living in. Iâve used an ID for the UK and an account for the US Apple Store a few years ago, e.g.