Yeah, Windows 2000 was probably the best operating system Microsoft ever produced. It had no crashes, a snappy/intuitive/sleek user interface, and DirectX support for games. I am currently running Mac OS X because I never liked Windows XP/Vista/10/11.
In hindsight, the progress Microsoft made in the ten years between Windows 3.0 (1990) and Windows 2000 seems incredible. They transitioned from a 16-bit shell running on top of DOS to a fully-fledged operating system with a hardware abstraction layer, preemptive multitasking, permissions, a registry, proper device drivers etc.
Twenty-five years later, there has been basically no progress.
At a minimum, I would have expected something like the Knowledge Navigator
https://www.youtube.com/watch?v=umJsITGzXd0