[Bug 50717] Wine places 1x1 pixel window on top of fullscreen window, blocking direct scanout on Wayland

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50717

--- Comment #6 from tempel.julian at gmail.com ---
I can confirm that your patch prevents the unmanaged window to spawn.

It turned out that also Wine's system tray icon feature can be problematic
(e.g. Battle.Net client), as it (independently of the desktop environment?)
spawns a 100% translucent window with on-top property. Is it really necessary
that it is always on top? This can make it placed on top of fullscreen windows
and thus can/does prevent direct scanout as well. As a result, an exception for
100% translucent windows was added to kwin's direct scanout feature, but this
is probably better also fixed at the root?

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