[PlutoIsAPlanet]

Hardware planes will hopefully reduce the latency again as it will allow windows to skip the compositor and allow mapping parts of the framebuffer to a window buffer.

I believe there's some work on Linux already for them, but I'm not so sure on Windows. I would be surprised if macOS doesn't already use them in some capacity given Apple's obsession with delegating everything to firmware on a co-processor.

[LoganDark]

> Hardware planes will hopefully reduce the latency again as it will allow windows to skip the compositor and allow mapping parts of the framebuffer to a window buffer.

Hardware planes are great but there are a limited number of them. Right now I believe Windows only uses them for the mouse cursor, and exclusive fullscreen.

[PlutoIsAPlanet]

Arguably the only window that needs to be in a hardware plane is the window currently in focus.

[zamadatix]

Windows 11 has pushed the use of MPO for windowed games and video display.