https://bugs.kde.org/show_bug.cgi?id=454792

            Bug ID: 454792
           Summary: Is it possible to stop rendering all the windows that
                    are behind the windows in fullscreen?
           Product: kwin
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kwin-bugs-n...@kde.org
          Reporter: bigbr...@gmail.com
  Target Milestone: ---

Is it possible to stop rendering all the windows that are behind the windows in
fullscreen?

The reason is that, for example, if a video is playing on youtube in the
browser and a game is open in full screen, the video continues to render and
consume more processing than it should, but if you minimize the browser the
rendering of the video stops and keep only the audio.

I noticed it first playing Street Fighter, I noticed that the FPS was lower
when I had some video playing on youtube while I was playing, so I tried to
leave it minimized and it didn't lose FPS.
So I tested it with OBS Studio, I left it recording the browser with a video
playing on Youtube, when I minimized the window, OBS started recording a static
image.

I believe this is not really a bug, but an implementation of this type can help
many people who have started to play using Linux

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