Youtube and Amazon Prime Video etc show black screen for a second while making fulscreen

**Describe the bug** While making fullscreen Youtube and Amazon Prime shows a black screen for a second. **To Reproduce** Steps to reproduce the behavior: 1. Go to youtube.com in a browser 2. Click on any video 3. Make full screen and 4. See error **Expected behavior** It should not be a black screen, it should immediately become fullscreen. **Screenshots** While trying to make screenshot , it does not display. It directly shows the normal window. I don't know why. **Desktop (please complete the following information):** - OS: Cachy Os