Oppo-Smartphone has a system feedback in the form of vibrations when touched, and when this function is activated, the device vibrates during system applications and functions such as phone, navigation bar, menu, settings, etc.

Android 10 (ColorOS 7.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Sound & vibration
Step 3:  Enable or Disable  Vibrate on touch
  1. Open the Settings
  2. Tap on Sound & vibration
  3. Enable or Disable Vibrate on touch

Oppo Instructions
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