according to Android Police According to reports, YouTube has quietly opened the experimental function of “pinch zoom” to Premium users. As the name suggests, when you go to the “Try New Features” tab and turn on the corresponding option, you can adjust the screen size with a two-finger pinch action. The screen can be magnified up to 8 times, which should normally be enough for users to see a lot of details. According to reports, “Pinch-to-zoom” will be officially launched from September 1, but only Android devices are supported initially.