A lot of XP components are still in use in modern windows, whereas DOS was completely replaced around the time Windows XP came around.
Up to Windows 3.11 it was a GUI on top of DOS. Windows 95, 98, Me used DOS to boot and it was still possible to stop the booting process at a DOS prompt (although in Me this was no longer official). Finally Windows 2000 had nothing to do with it as it is NT based.
I generally ran 2-4x the amount of RAM as most did. Still do. Pretty sure this made a lot of the difference.
I rain it until it wouln't run sensible anymore in Windoes 10. I then ditched Windows for Linux soon after - I can recommend KDE Plasma if you want to have something thats sorta configureable enough like Litestep was.
Also NT4, NT3.51, NT3.5, NT3.1...