[jstx]

You are missing that saving a bookmark to the desktop does not provide a different instance of the browser when spinning up. It will just open a tab in the first browser it finds.

Which is horrible if you consider something to be a core piece of software and you are unable to effectively cmd-tab to it. This is more of an OSX issue than windows, since windows will happily alt-tab amongst browser windows. OSX uses a less intuitive cmd-` for tabbing through program instances and still requires that the webapp is running in it's own window, in the same OSX window "Space", it cannot be minimized, and which will crash with the browser itself, irrespective of which tab is truly responsible [taking all your current state data with it].

I'm all for webapps supplanting native apps. But even presenting them as such requires something like Electron, and is completely counter to the trend of managing all tabs [webapps] as crony components of a master "WebBrowser" process.