along with a new product page experience in the Microsoft Store for Insiders. At the time, according to the Windows Insider blog post, the changes were only available to Windows Insiders across ...
The new Microsoft Store third-party app update feature is currently only available to Windows Insiders. It’s unknown when it will appear in the stable version of the operating system.
In a nutshell: Despite a lack of user interest, Microsoft is still trying to transform the Windows App Store into a "universal" platform for accessing all types of Windows applications.