Progressive Web Apps dont' show up on Phosh
When you create a PWA on a default Phosh installation (at least on PostmarketOS, Angelfish installed via flatpak or apk), the web app won't show up in Phosh menu. If you manually find a recently created .desktop file and add this line to the bottom of the file
Type=Application
Then the shortcut will appear and work as expected
So probably Angelfish needs to append this line when creating a .desktop file