In daylight, you will not find anything as the dust particle is small against light, which is scattering or entering the camera lens not sure lets see if samsung service centre has something for me to replace
It works. I have tried nkt sure if tried like this , while you are in video call scroll down notifications bar there first opt you will see video call effects click on that it will get applied if you already the background
try to reset camera settings if problem continues contact Samsung customer care support they will remotly scan your phone and helps to figure out your problem.
