dconnet's post in Desktop vs Windows Store Version was marked as the answer
The 2 versions use the same (exact) binary. But there are some runtime differences
- WinStore can do tiles and notifications
- enscript does not work with WinStore version
- WinStore is easier to update - no MSI installer
- Some options that make no sense in the Store have been removed - for instance check-for-updates.
Other than that, I'm not aware of any other differences. (And I'm who storified it)