I moved from Chrome to Opera GX and there is a bug I did not have on any other browser. When I use any video player (for example youtube) and click full screen (double click or interface button with my mouse or “F“ key) it works correctly but when I want to quit full screen with one of those methods it kinda works but half a second later it forces F11 key to another full screen. I checked hot keys in browser’s settings and I found nothing.