Hi @pilotgi I downloaded the latest tumbleweed iso and did a fresh install to replace an old tumbleweed. I choosed KDE then I modified the packages before installation to add xfce. After installation KDE plasma-wayland works so as KDE in x11 works also.
You can probably compare my KDE packages with what you have installed.
zypper se --installed-only session
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S | Name | Summary | Type
---+------------------------------------+------------------------------+--------
i | plasma6-session | KDE Plasma 6 Session | package
i | plasma6-session-x11 | KDE Plasma 6 Session on X11 | package
i | xfce4-session | Xfce Session Manager | package
i | xfce4-session-branding-openSUSE | openSUSE Branding of xfce4-> | package
i | xfce4-session-lang | Translations for package x-> | package
i | xfce4-session-wayland-experimental | Xfce Session Manager for W-> | package
zypper se --installed-only plasma
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S | Name | Summary | Type
---+-----------------------------+-------------------------------------+--------
i | kde_plasma | KDE Plasma 6 Desktop Base | pattern
i | kdeplasma6-addons | Additional Plasma6 Widgets | package
i | libPlasma5Support6 | plasma5support library | package
i | libPlasma6 | Plasma 6 core libraries | package
i | libplasma6-components | Plasma QML components | package
i | libplasma6-desktoptheme | Desktop theme files usable by Pla-> | package
i | libPlasmaActivities7 | Library for Plasma Activities sup-> | package
i | libPlasmaActivitiesStats1 | Library for KDE's Plasma Activiti-> | package
i | patterns-kde-kde_plasma | KDE Plasma 6 Desktop Base | package
i | plasma5support6 | KF6 Porting aid | package
i | plasma6-activities | Plasma Activities support | package
i | plasma6-activities-imports | Plasma Activities support | package
i | plasma6-activities-stats | KDE Plasma Activities support | package
i | plasma6-branding-openSUSE | openSUSE settings for KDE Plasma 6 | package
i | plasma6-browser-integration | Helper for the KDE Plasma Browser-> | package
i | plasma6-desktop | The KDE Plasma Workspace Components | package
i | plasma6-desktop-emojier | Selection window for emoji text i-> | package
i | plasma6-disks | Plasma service for monitoring dis-> | package
i | plasma6-integration-plugin | Plugins responsible for better in-> | package
i | plasma6-nm | Plasma applet written in QML for -> | package
i | plasma6-nm-openconnect | OpenConnect support for plasma6-nm | package
i | plasma6-nm-openvpn | OpenVPN support for plasma6-nm | package
i | plasma6-nm-pptp | PPTP support for plasma6-nm | package
i | plasma6-pa | The Plasma6 Volume Manager | package
i | plasma6-print-manager | Tools for managing print jobs and-> | package
i | plasma6-sddm-theme-openSUSE | SDDM theme for openSUSE | package
i | plasma6-session | KDE Plasma 6 Session | package
i | plasma6-session-x11 | KDE Plasma 6 Session on X11 | package
i | plasma6-systemmonitor | An application for monitoring sys-> | package
i | plasma6-theme-openSUSE | Plasma 6 theme for openSUSE | package
i | plasma6-thunderbolt | Plasma frontend for Thunderbolt 3-> | package
i | plasma6-workspace | The KDE Plasma Workspace Components | package
i | plasma6-workspace-libs | The KDE Plasma Workspace Components | package
Above are my installed packages that I think where some are missing in your installation to make plasma wayland work.
Please disregard the xfce stuffs. ![]()