From the WIkipedia article:
a progressive web app is a type of webpage or website known as a web application
In 2015, designer Frances Berriman and Google Chrome engineer Alex Russell coined the term “progressive web apps” to describe apps taking advantage of new features supported by modern browsers
Yes, there are many facets to system architecture, but the points in posts above seems to be a case of semantics (which is appropriate for technical discussions, but this isn’t intended to be anything more than a feature request; the technical review can–and should–take place elsewhere). Is this level of detail on-topic? This topic is about exposing the History and Forward/Backward navigation functions of the “browser-like container” that a Progressive Web App runs in when deployed as a web app running in that particular container.
Comparing the two screenshots below of the meta.discourse.org webSite/webApp/call-it-what-you-will running in Microsoft Edge and the “DesktopApp”/PWA/CIWYW shows the exact same context menu (with “add to collections” omitted from the PWA). This isn’t coincidence, of course. 
