[detaro]

> AFAIK services offered in one EU country have to work throughout the EU

Streaming services are a bit of a special case: they can have different access in different places, but the location that counts is the users home location. So e.g. a national sports league can license exclusive rights to different streaming services in different countries, and in your home country there is only one choice, but if you sign up with them and then travel, you still can access it, even though the "exclusive" contract for that country is with someone else.