Wrong AppStore Region

My app is only available on UK App Store. I ran a quick dev TestFlight to determine region and it shows region as USA. Is this because the region is always USA for TestFlight? Will it work properly once I get to published App Store?

i need to know so I can go to the right backend for GDPR purposes before anything happens..

My iPhone is registered to UK. So it doesn’t make sense that it shows USA. Why?

Wrong AppStore Region
 
 
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