Is Amazon Appstore available outside US?
The Amazon Appstore is available in select countries and regions. You need an Amazon account for that country or region to install apps. Here's the current list of supported countries and regions: Andorra.
How do I install Android apps on Windows 11 outside the US?
To install Android apps on Windows 11, you will need to update to the latest build and install the Amazon Appstore from the Microsoft Store. If you're in an unsupported region, you can also sideload the Windows Subsystem for Android and manually install apps using APK files.