Comment 8 for bug 2063333

That command did create some users
Restarting gnome remote desktop now gives me

░░ Subject: A start job for unit gnome-remote-desktop.service has begun execution
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit gnome-remote-desktop.service has begun execution.
░░
░░ The job identifier is 52156.
May 02 14:27:47 localhost gnome-remote-de[36906]: Init TPM credentials failed because No TPM device found, using GKeyFile as fallback
May 02 14:27:47 localhost gnome-remote-de[36906]: Init file credentials failed: Error creating directory /var/lib/gnome-remote-desktop: Permission denied
May 02 14:27:47 localhost gnome-remote-desktop-daemon[36906]: **
May 02 14:27:47 localhost gnome-remote-desktop-daemon[36906]: ERROR:../src/grd-settings.c:345:grd_settings_constructed: assertion failed: (priv->credentials)
May 02 14:27:47 localhost gnome-remote-desktop-daemon[36906]: Bail out! ERROR:../src/grd-settings.c:345:grd_settings_constructed: assertion failed: (priv->credentials)
May 02 14:27:47 localhost systemd[1]: gnome-remote-desktop.service: Main process exited, code=dumped, status=6/ABRT
░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ An ExecStart= process belonging to unit gnome-remote-desktop.service has exited.
░░
░░ The process' exit code is 'dumped' and its exit status is 6.

Running: /usr/libexec/gnome-remote-desktop-daemon --system

** (gnome-remote-desktop-daemon:36919): WARNING **: 14:30:22.681: Init TPM credentials failed because No TPM device found, using GKeyFile as fallback
Failed to register: Unable to acquire bus name 'org.gnome.RemoteDesktop'