What's the difference between
1.installing Ubuntu and changing its desktop to KDE or direct installing kubuntu
2.installing Ubuntu and changing its desktop to XFCE or direct installing xubuntu
3.installing Ubuntu and changing its desktop to LXDE or direct installing lubuntu
4.installing Ubuntu and changing its desktop to mate or direct installing Ubuntu mate
5.installing Ubuntu and changing its desktop to gnome or direct installing gubuntu
Please help... I am confused..