Why is a green dot appearing on the target device while the app is in use?

The green dot is an Android operating system indicator that appears whenever the camera or microphone is actively in use. This is an OS-level security feature and is not controllable by the application itself. To hide the app icon and suppress related indicators, the target device must be rooted. Rooting can be performed using the Magisk application; once the device is rooted, the app icon will be hidden automatically. Note that each device model has a different rooting method.