I used "Android Debug Bridge ADB commands" to disable the Navigation bar and the status bar. Once applied the Navigation bar on Note8 will be hidden at all time. It's a small tweak and so far so good. I also provide these commands below in case you need them.
run: adb shell settings put global policy_control immersive.navigation=apps,-com.samsung.android.app.smartcapture
run: adb shell wm overscan 0,0,0,-168
aha thx. hackor! :P so you would say the "fullscreen" mode is something you 'hacked' and is not available to all users?
Or do you mean in your most recent reply that that fixed the viewport for the app for your fullscreen mode?
looking fwd.