https://bugs.winehq.org/show_bug.cgi?id=56149
--- Comment #10 from Gabriel Ivăncescu gabrielopcode@gmail.com --- I'm not sure if it happens with normal windows. For one thing, update_net_wm_states bails out instantly if it's the virtual desktop window, any idea why? So net_wm_states is never synced properly for virtual desktops, neither is fullscreen.