New Tumbleweed installation, verified under a blank new user.

Wayland (+Plasma) user sessions on my machine do not seem to set/get the right
DBUS session bus address

> env | grep DBUS
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-mD80k1oNq5,guid=fa357084a326708efc6312165d61aa7e

whereas under X11, on console, and for services started by a systemd user
session, the DBUS session bus address is

> systemctl --user show-environment | grep DBUS
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
> env | grep DBUS
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus

The consequence is that programs started under Wayland cannot connect to
services started by the systemd user session, in particular pulseaudio.
pulseaudio-related applications like pulseaudio-dlna therefore do not work
under Wayland (but do under X11).