I have tried adding this modifier to the tabView element but nothing happened. How were you able to make it work?

My apologies, it worked for some reason now.

Hello @DTS Engineer, I tried establishing AVCaptureSession and seems to get how it should work and as I set a device input AVCaptureDeviceInput and output - AVCaptureVideoDataOutput and an AVCaptureVideoPreviewLayer it allows me to see what camera captures but the captureOutput function of the class AVCaptureVideoDataOutputSampleBufferDelegate is not triggered at any time. Do you know what the problem might be?