Even in the newest S24 Ultra, we are still unable to use the flashlight while in camera mode. I am trying to scan a QR code in a poorly lit room and am unable to turn on the phone light because "another app is controlling it." On that note, it would be nice if I could scan QR codes that I've taken a picture of, because taking a picture is the only way I can capture the QR code with light, but I can't follow the link of a QR code in a picture.