I recently tried installing Windows 11 on a PC to run some games. The contrast with Windows 2000 is crazy, what a mess. Even just the control panel has three different UI frameworks mixed in one application. The whole thing is slow on a modern CPU with 64gb ram.
How did they get from Windows 2000 which arguably may have been ahead of Linux in terms of kernel and at least on par if not better than Mac OS in terms of UX to todays version of Windows 11?