I have been using Discourse on iPad Air (iOS 12.5.7) which has been declared too old to provide a rich experience to. I am disappointed but understand.
However, when using to read a number of different forum via single Discourse app there is now no way to get back to the list of furum after entering the first. So the user is stuck and has to force exit the app.
This is because the browser back button is not available and the basic HTML interface does not provide a way to minimise the forum.
I would rather have near full experience with a banner warning that things might not work properly and continuing is unsupported … but if that will not be done then please put in a back function.
Thanks for your feedback @PaulWebster and sorry for the troubles.
I’m guessing your device is a first-generation iPad Air and it cannot be updated to iOS 13 or later?
One helpful tip is that the mobile app has a gesture for dismissing an open site. You can swipe downwards to dismiss, starting the swipe roughly at the location of the site logo.