Adding as a bookmark doesn't get rid of the search bar and doesn't fill the top notification bar with the same colour as the app sets in the <head>. And there

Adding as a bookmark doesn't get rid of the search bar and doesn't fill the top notification bar with the same colour as the app sets in the <head>. And there isn't a real flow that does explicitly say "Install" which is crucial for the final user to understand. And overall after PWA installation the screen is filled with app alone in a clear and native looking way.