How do you sideload apk files in Windows 11?

Solution 1:

At this time, as of 11 of July 2021, the only thing we are sure of is that downloaded APKs will work, but the mechanism is yet unknown.

Microsoft Distinguished Engineer Miguel de Icaza addressed those concerns on Twitter. Icaza simply responded “Yes” to one Twitter user who asked if Windows 11 would run APKs obtained from outside the Amazon Appstore. Then, in response to another user who called the Amazon Appstore “the Diet Coke of App Stores,” he said “then bring your own APK”.

From this we understand that Microsoft’s partnership with Amazon wouldn’t restrict Windows 11 to specific Android apps.

It's also unknown how well these APKs will function. Apps like the Google Play Store or Google Maps won’t run without Play Services, which are not included in Windows 11.

xda-developers points out that certain third-party apps may be missing some functionality, one example would be the Twitter app that could perhaps be installed, but you won’t receive push notifications.