On Linux, there is a white line on top of all fullscreen pages (YouTube) [1], Downloads page doesn't work, video glitches out and the entire browser is unusably

On Linux, there is a white line on top of all fullscreen pages (YouTube) [1], Downloads page doesn't work, video glitches out and the entire browser is unusably slow when you have many entries in your browsing history. [1] https://forums.opera.com/topic/38628/why-is-there-a-white-strip-at-the-top-of-youtube-video-in-full-screen https://forums.opera.com/topic/38628/why-is-there-a-white-st...