KDE Plasma - Going all-in on a Wayland future

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I’m already running SDDM on Wayland in both Slowroll and Leap 16. SDDM works fine as a Wayland greeter when launched through the sddm.service…

~> systemctl status display-manager
● sddm.service - Simple Desktop Display Manager
     Loaded: loaded (/usr/lib/systemd/system/sddm.service; enabled; preset: enabled)
     Active: active (running) since Thu 2025-11-27 18:28:54 NZDT; 17min ago
 Invocation: cea25a1e1f4f4e738cafa6c75d383da0
       Docs: man:sddm(1)
             man:sddm.conf(5)
   Main PID: 1205 (sddm)
      Tasks: 2 (limit: 4659)
        CPU: 162ms
     CGroup: /system.slice/sddm.service
             └─1205 /usr/bin/sddm

FWIW, I have /etc/sddm.conf.d/10-wayland.conf with…

[General]
DisplayServer=wayland
GreeterEnvironment=QT_WAYLAND_SHELL_INTEGRATION=layer-shell

[Wayland]
CompositorCommand=kwin_wayland --drm --no-lockscreen --no-global-shortcuts --locale1

The display-manager-legacy.service is disabled…

○ display-manager-legacy.service - X Display Manager
     Loaded: loaded (/usr/lib/systemd/system/display-manager-legacy.service; disabled; preset: enabled)
     Active: inactive (dead)
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