Part of the “app gap” may be getting a Store App that works. Quoting from the blog post …
we understand that closing the App Gap is crucial to improving usability and making our products accessible and convenient for a greater number of people
Hard core Linux users don’t care about a Store App. They just use the command line. However the masses have the expectation that if there’s a GUI application to install software then it works i.e. “accessible and convenient for a greater number of people”. It has never worked 100% reliably for me.
Example of expectations: PureOS Store apps not loading, store search function not working