What's the difference between using this and clicking on the new "Install" button in the URL bar? I have all of my Google apps available as system apps either u

What's the difference between using this and clicking on the new "Install" button in the URL bar? I have all of my Google apps available as system apps either using that button or using "More tools -> Create shortcut", which is probably one of the best hidden gems of Chrome (yes, even Gmail can run as a separate app and supports offline mode).