[Linux] Flicker issue

[svin24]

Describe the Bug
There is constant flickering under linux. WARNING if you are sensitive to flickering like do not watch the video.

Screencast_20240312_192733.webm

To Reproduce
Steps to reproduce the behaviour:

1. Use protontricks to set up and run the application
2. Notice the application flickers, I think mostly on updates

Expected Behaviour
Doesn't flicker

Additional Context
I am using Fedora Linux with KDE and Wayland.
I also tried it with gamescope using the command

gamescope -- protontricks-launch ./Reload-II.exe

This could probably be an issue with upsteam but i decided to report here first just in case.

[Sewer56]

I can confirm this exists.

As the dev, I experience this myself on Hyprland.
When two windows overlap, and one window is updated (e.g. displaying a progress bar), the focus between the two windows is quickly swapped.

I'm not sure of the cause per se, especially as I don't remember this happening in X11 in the past (I'd need to re-confirm), but I do acknowledge this at least happens in some Wayland environments under Wine

[Sewer56]

Actually, I think this may be caused by the window blur effect on focus/unfocus. I should maybe disable that on Wine by default, since it's expected that your window manager will provide its own custom decoration.

[Sewer56]

This is slightly improved by 92e7dc5 with disabling client side decorations.
Still a Wine issue however.