I do t know the state of the art, but years ago there was a technique that prevented screenshot of video. The result was always just a blue background as if the

I do t know the state of the art, but years ago there was a technique that prevented screenshot of video. The result was always just a blue background as if the video was being rendered on to a green screen and windows could not tell. I dont know what the state of the art is now, but given that I can probably take a photo with my phone if I really needed it seems like wasted energy