I'm trying to use an app that places the hamburger menu on the system bar (with Home, Back, and Recent apps buttons). On devices that have a system bar (i.e., these buttons are on the screen), the menu is easily accessible. But now I'm trying to use the app on a device that has physical Home, Back, and Recent apps buttons. The system bar isn't shown, so the menu is apparently inaccessible (where it would be is off the screen). Is there a way to still access this menu when the system bar isn't shown?
On many phones, long pressing on the back or recent apps button will bring up the menu.
If that doesn't work, here's a workaround: (this only works on Samsung phones)
Go to settings -> accessibility -> Dexterity and interaction -> Assistant menu, turn it on. There will now be a floating blue circle on your screen. Open the desired app, press on the circle, and press "more options" to should bring up the menu.