Installing a PWA on Android does more than just add the Progressive Web App to the user's Home Screen. Chrome automatically generates and installs a special APK of your app. We sometimes refer to this as a WebAPK. Being installed via an APK makes it possible for your app to show up in the app launcher, in Android's app settings and to register a set of intent filters.
On Android, only Chrome can install WebAPKs. All other browsers can only make shortcuts which lead to an inferior user experience.
On Samsung ROMs, Samsung's browser can also install WebAPKs, but on all other devices that same browser only does shortcuts.
The FAQ at the bottom of the page says this:
I am a developer of another browser on Android, can I have this seamless install process?
We are working on it. We are committed to making this available to all browsers on Android and we will have more details soon.
This text has been here for many years and many major versions of Android, with no updates or progress.
Google boasts about the advantages of installing Progressive Web Apps as WebAPKs:
https://web.dev/articles/webapks
On Android, only Chrome can install WebAPKs. All other browsers can only make shortcuts which lead to an inferior user experience.
On Samsung ROMs, Samsung's browser can also install WebAPKs, but on all other devices that same browser only does shortcuts.
The FAQ at the bottom of the page says this:
This text has been here for many years and many major versions of Android, with no updates or progress.