I dont even remember now why windows 2000 was superior to XP, but I ran it until I switched to Linux some time in 2004, despite having XP available too. Installed XP on other people’s computers though, FCKGW…

2k appeared to retain NT's responsiveness with seemingly separate threads for processing UI stuff where XP appeared to devolve to Windows 98 (pre NT) in terms of UI and app event processing merged together into a single foreground event loop.