pi@raspberrypi:~ $ systemctl get-default
graphical.target
pi@raspberrypi:~ $ sudo grep -R "autologin-user" /etc/lightdm/
/etc/lightdm/lightdm.conf:# autologin-user = User to log in with by default (overrides autologin-guest)
/etc/lightdm/lightdm.conf:# autologin-user-timeout = Number of seconds to wait before loading default user
/etc/lightdm/lightdm.conf:#autologin-user=
/etc/lightdm/lightdm.conf:#autologin-user-timeout=0
pi@raspberrypi:~ $