Change default DE (xfce for example)

[maksakovaa]

Added packages

xfce4
xfce4-goodies
lightdm
lightdm-gtk-greeter

and remove kde packages from packages_desktop.x86_64 (most of all i think)
but after building iso loaded only tty. Could run xfce manually by enabling&start lightdm service

sudo systemctl enable lightdm
sudo systemctl start lightdm

display-manager.service as i saw still linked to plasmadesktop.service.
How to setup autostart another DE preinstalled in iso?
this is my packages list

packages_desktop.x86_64.tar.gz