The country of the Play store is not actually the same than the one this article is about. I could find a way to change it and have the local store when I move

The country of the Play store is not actually the same than the one this article is about. I could find a way to change it and have the local store when I moved to Japan, but honestly I don't remember exactly how. I only remember that it was a major pain in the ass to understand how to do it. I had to navigate between different applications (notably Google pay) and web interfaces to finally be able to change this setting. Worst UX ever.