I once was at a huge car expo, and French and German halls were adjacent to each other. For some reason, all French car makers had extremely loud music at their spaces, like if they were trying to be louder than each other. It was basically impossible to be there.

The German hall (all three major makers) had complete silence inside. So this is also a cultural thing, and a pretty strong one as this happened in Moscow, and most of the workers were Russians of course.