"Display fullscreen overlay windows directly" does not work
This option does nothing. I am using xfce 4.18 on linux mint 21.
Reproducing: Open a game and disable vsync in the in-game options.
With compositing disabled:
Screen tearing is present as expected.
With compositing enabled and "Display fullscreen overlay windows directly" checked:
There is no screen tearing. The window is not being displayed directly.
With compositing enabled and "Display fullscreen overlay windows directly" unchecked:
No difference.