AppImage generally do not work well on several distros
On several distros to even make it appear I need to install python31*-PyQt6. To make the routing/Cables appear I get error messages about QDBusTrayIcon encountered a D-Bus error: QDBusError("org.freedesktop.DBus.Error.ServiceUnknown", "The name is not activatable"). This I haven't been able yet to solve by installing packages.
AppImage does not have any dependencies bundled so having to install them manually is a non-issue.
To make the routing/Cables appear I get error messages about QDBusTrayIcon encountered a D-Bus error: QDBusError("org.freedesktop.DBus.Error.ServiceUnknown"
I do not understand that sentence but the error might be about missing dependencies if you are not using Plasma. Try installing gnome-shell-extension-appindicator, xfce4-indicator-plugin or equivalent for your DE.