Subject: Plasma/Wayland: Desktop icons/launchers move to wrong screen after session restart when using multiple monitors

Description:

I'm experiencing an issue with desktop icons and launchers not maintaining their assigned screen position after restarting the session in KDE Plasma with Wayland.

System Information:

    OS: Fedora 43

    Plasma Version: [Please include your exact Plasma version - can be found in System Settings > About Plasma]

    Graphics: [Your GPU model if known]

    Session Type: Wayland

    Monitors: Primary: LG HDR 4K, Secondary: Iiyama North America

Steps to Reproduce:

    Set up two monitors with LG HDR 4K as primary display in System Settings > Display

    Place several desktop launchers/icons on the primary monitor (LG)

    Log out and log back in OR restart the session

    Observe desktop launchers position

Expected Behavior:
Desktop launchers should remain on the primary monitor (LG HDR 4K) where they were placed, maintaining their positions after session restart.

Actual Behavior:
After session restart, the desktop launchers automatically move to the secondary monitor (Iiyama) instead of staying on the primary monitor.

Additional Information:

    I have confirmed the primary monitor is correctly set in System Settings > Display

    The issue occurs consistently with every session restart

    I've tried the "Different desktops on each display" option in Display Behavior, but the problem persists

    This does NOT occur when using X11 session, only in Wayland

    The monitors maintain their correct resolution and arrangement, only the desktop icons are affected

Potential Workarounds Tried:

    Setting different desktop for each display (didn't resolve the issue)

    Manually moving icons back after each login (temporary fix)

This appears to be a Plasma/Wayland specific issue with desktop icon persistence across sessions. The desktop session should remember and restore icon positions based on the designated primary display.