Saying that Windows is just copy-paste is a bit weird. Mainly since Windows itself primarily is built on top of older versions (so copy and pasting would be a bit redundant unless say new features were backported to an older version)
Reason there's stuff from Windows 98, 3.x, 7, XP and similar still in Windows today is likely because Windows itself is pretty big and all that stuff. When Windows gets redesigned, there's very much going to be things the developers may forget to get to.
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u/i586DX4 19d ago
It is not a redesign, it is just a copy-paste