In the case of Windows 11, it is not feature complete - there are things in 10 not in 11. Additionally, hardware support is different, and if you have some thin

In the case of Windows 11, it is not feature complete - there are things in 10 not in 11. Additionally, hardware support is different, and if you have some things that cannot go to 11, why take anything to 11 and have an inconsistent set of devices? 10 is still fully supported. In the case of macOS 10.14, it has 32-bit support and .15 doesn't. macOS also has gotten increasingly user and developer hostile every release (my opinion, of course). In the case of iPadOS 15, in my opinion it entirely broke multitasking and I wish I could go back. Some Linux users are still suffering from the "upgrade" to systemd. In general I have found over the last decade that OS "upgrades" change things, break things, cause regressions and make my life unhappy. I wouldn't mind so much if it was once every 3-5 years but this annual cycle of breaking and changing things is tiresome to me.