Today's fact: once upon a time before Android 10, we can customise our navigation bar on any android with adb and without root access

Using " adb shell settings put global policy_control immersive.navigation=* " this and using Accessibility settings we can change our navigation bar apperance or anything or even hide status bar completely if you wish so !!

But after android introduced ios like gesture navigation, this setting broke and sadly we can't customise it on stock android