I have changed my country region in both the General -> Language & Region and the Apple ID -> Media & Purchases.
I have read many posts about apps not updating from their previous country region. How can I tell which apps are affected? How did people find out that they couldn’t update their apps?
It’s a bit late for this suggestion, but unless your moving for good, having 2 Apple IDs setup with different countries is the easiest way to handle moving abroad.
I assume that the only apps you might run into some issues with, are the ones that are not listed in your new country’s App Store.
I had 3 different countries stores on my iPhone, now only 2 but everything has been updating fine for years. But I have different accounts for each region so maybe that works fine?