I still havenβt. I held onto 98 and XP for ages too. Vista and ME were solid reasons to be skeptical. I even had to support CE (the old mobile windows) which was literally called WinCE by windows so that support staff knew what was coming.
Itβs really every edition of Windows. Xp is held up as a gold standard these days but I remember it wasnβt good until service pack 2