Perhaps I should have chosen my words more carefully. The obstacle is that its not intuitive that you can install/save this PWA to my home screen via the Share Button. Someone is going to have to tell you the first time. If you open the original link on an iPhone, and click the "Install to Home Screen" button, it'll show you a popup with screenshots and instructions. The user will have to be somewhat determined to install the PWA.

As opposed to an obvious button that says click me to install/download. (The usual Get it on the Appstore buttons), or Smart Banners[1]. The banner/button makes it crystal clear that I can click it to install the app. (Yes, you are correct you may need additional clicks to actually install, but by that time, you are in a familiar workflow).

1. https://developer.apple.com/documentation/webkit/promoting_a...