Despite enabling 'show navbar when volume dialog is active in fullscreen' in the compatibility settings, my volume dialog still gets cut off on my Oneplus 7T with OxygenOS 10.0.11.
When I press and hold the power button the power option menu appears and this shifts the volume dialog to the right position. You could maybe tweak the WindowManager layout params.
I'm also an Android developer so I would like to help debug this issue if you were to provide me with access to the source code :)

Despite enabling 'show navbar when volume dialog is active in fullscreen' in the compatibility settings, my volume dialog still gets cut off on my Oneplus 7T with OxygenOS 10.0.11.
When I press and hold the power button the power option menu appears and this shifts the volume dialog to the right position. You could maybe tweak the WindowManager layout params.
I'm also an Android developer so I would like to help debug this issue if you were to provide me with access to the source code :)