Explain what the region setting does

What

• From a power user:
• Explain what the region setting does.
  • What if the App/System language is different from that regions language?
  • The first product I wanted to edit had a name in a foreign language (neither System nor region language).
  • Should I delete it and replace it with the name in my language?
  • Must that correspond to the regions language/whats written on the product sold in that region?
  • How does all the language handling work at all?
• Most of it will be answered by
• [ ] #2514