Somehow, Windows 2000 does not look dated to me. It looks functional and usable, and maybe even somewhat fresh. I never actually used it long-term (during college, started using Linux), so it can't be nostalgic. Anyone else feel the same?
It really wasn't a bad operating system. In fact it kind of blew its (lame) Win9X predecessors out of the water! I ran on Win2000 for years before finally switching to Linux. Of course Microsoft ended up going a different course with its newer "offerings" and I have nothing but pity for those who still have to use their products on a day-to-day basis.
There are a few APIs from Windows 7 that are great improvements over Win32, such as DirectWrite and Direct2D.
You can fix Windows7/8/10/11 with Retrobar
I ran W2K through most of high school and until like 2009 when Valve finally dropped support for it. It was a great OS fast, rarely crashed, most games would actually run on it. Valve dropping W2K support meant TF2 no longer ran without jumping through a bunch of hoops