Belgium is a good example of a country where Dutch and French often carry the main storefront weight, while German may or may not require its own deeper language layer. The goal is to separate what is commercially necessary from what is merely visible on paper.
Belgium often needs a more deliberate Dutch-and-French storefront strategy than merchants expect at first.
German may be important for some stores, but it should be added only when there is a real commercial or trust case for it.
Belgian localization is not just about translation quality. It affects navigation, metadata, trust, and release complexity.