In Android OS 12 and above, this notification will popup when you will use MIC/Camera related features. If you do not want to show a green indication icon while using a MIC/Camera related feature then they need to run permission tool application into the device. For more information of permission tool: https://tispy.net/settings-android10 To run the  permission tool, you need to connect a monitoring device with a laptop or desktop and run the permission tool application. (System should have windows 10 with 64 bits).