Openboard on Wayland

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I want to summarize the current situation here to help plotting a way forward.

OpenBoard on Xorg is the most mature combination.
However, using Xorg in a sensitive environment such as schools is not advisable.

I found Openboard on Wayland mostly usable but crashes do occur.

There are some restrictions either to the security concept of wayland or known bugs.

1. Screenshots: applications are required to use xdg-desktop-portal to access the content of other windows.
   This is not implemented (yet).
2. Desktop mode: Openboard needs to stay on top of all other windows. You must configure your compositor appropriately.
3. There known bugs.
   a) invisible main window: [Bug] When RightLibPaletteBoardModeIsCollapsed=true the main Window stays invisible. #1164
   b) a crash when configuring multi-screen-setups
   OpenBoard 1.7.0 on Wayland: Segmentation fault when clicking into the "List of screens used for Control, Display and Previous pages" entry field #843

I'm use kwin-wayland with focus-follows-mouse on window-raise-on-click disabled.
This works fairly well.
If you have other setups that work (especially on gnome), please share.