yes, If i know a way to list that, hum 
, what shows you this command? it shows the free space?
sudo partitions-list --show-all --show-raw --show-disks
Yes, that ncurses menu to select the window-manager (desktop) is included by default, is not an error (unless i understood something wrong)
But UEFI is not "secure boot", is just a better boot structure, is better to keep it compatible than overwrite it with the old MBR structure (and harder to recover lol, now im trying to boot a windows recovery usb for that...)
