I resolved the issue using the Android settings. The hide the navigation bar in the Launchbox settings didnt work on my Note 9. So I went to my Android settings, clicked on Display, then to "full screen apps" and looked for LaunchBox. It said LaunchBox was already optimized for full screen. So that didnt help. So I went to the display options again and then to Navigation bar settings. I disabled the buttons and opted to use gestures instead.
It's not really a fix, but a workaround. As the navigation bar gestures on my Note 9 are not the equivalent of the visual buttons of the navigation bar, less capability. But I guess I can try to figure that out.
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Hiddenpalm's post in How to remove Android taskbar? was marked as the answer.thumb.png.146d82fbd583906f1272fb47e0d94237.png){kind=avatar}