Hi,
I actually still do see the same issue with a fresh install of lightdm (1.26.0-8) on Bookworm on several machines:
fai[79971]: liblightdm-gobject-1-0:amd64 (1.26.0-8) wird eingerichtet ... fai[79971]: gir1.2-lightdm-1 (1.26.0-8) wird eingerichtet ... fai[79971]: lightdm-autologin-greeter (1.0-5) wird eingerichtet ... fai[79971]: lightdm (1.26.0-8) wird eingerichtet ... fai[79971]: Lege Gruppe »lightdm« (GID 127) an … fai[79971]: Fertig. fai[79971]: Lege Systembenutzer »lightdm« (UID 118) an … fai[79971]: Lege neuen Benutzer »lightdm« (UID 118) mit Gruppe »lightdm« an … fai[79971]: Erstelle Home-Verzeichnis »/var/lib/lightdm« … systemd[1]: Reloading. systemd[1]: Starting lightdm.service - Light Display Manager... lightdm[93963]: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files lightdm[93963]: Could not enumerate user data directory /var/lib/lightdm/data: Error opening directory '/var/lib/lightdm/data': No such file or directory systemd[1]: Started lightdm.service - Light Display Manager.
However, the directory does exist now and I don't know who created it when. It is created with owner/group root and 755 permissions, though.
Best,
Max