Even if the navigation bar does not take up much space, it can be annoying in certain apps. To hide the navigation bar, the corresponding option must be activated in the settings. A hide icon is then displayed in the bar, which can be used to hide it.

To hide the navigation bar again, wipe from the bottom of the screen to the top.

Android 10 | ColorOS 7.0
Step 1:  Open the  Settings
Step 2:  Tap on  Convenience tools
Step 3:  Tap on  Navigation buttons
Step 4:  Enable or Disable  Auto hide virtual buttons
  1. Open the Settings
  2. Tap on Convenience tools
  3. Tap on Navigation buttons
  4. Enable or Disable Auto hide virtual buttons

Oppo Instructions
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