Ask permissions on TWA App directly

[NicoHood]

Hi!
You probably know PWA App, which are a mobile app format where you can install your App via Browser. There are also TWAs that (as far as I understand) are (at least on android) used to get a PWA into a native android app.

It turns out that this TWA android app automatically subscribes to notifications, one a request was offered to the user. However normally (on desktop) you do not want to bother users with this popup dialog, but in the App itself it is fine. So we need a way to detect, if the website was launches from a TWA.

I was told, that is should be implemented by passing a custom query parameter from the TWA. So in this case perfecty must just check for this query parameter and send out a notification request. If that is possible, that'd be super awesome, as it would enhance the user experience a lot!

More context:
GoogleChromeLabs/bubblewrap#660