[yyx]

Maybe it's used for fullscreen games?

[walrus01]

I'm sure it is, and works great for that, I just think it needs one more layer of user consent and understanding before it's turned on.

[tyingq]

I see it in emulators, like this one: https://www.pcjs.org/software/pcx86/sys/windows/3.10/

(click one of the Windows apps once it boots)