Currently, when Flarum is added to the home screen on mobile, the URL bar is present which reduces screen space.
Demo:
An online password manager known as https://keeweb.info/ has the following design I want to suggest.
Note: I have no affiliation with the following website. It demos the concept well
Mobile view when accessed from the web:
(please expand images)
Documentation to implement this feature:
https://developers.google.com/web/fundamentals/native-hardware/fullscreen/
