Well, there are features missing.

Given how every monitor in existence is wide , it's super odd you can't drag the taskbar to the side, it's bottom only. https://www.windowscentral.com/microsoft-explains-why-you-ca...

The Win 11 context menu is just irritating, it displays a lot of unnecessary things and the "real" context menu is hidden under "show more options"

You can see much more at https://github.com/valinet/ExplorerPatcher/ -- and this project fixes them, too.

They removed support for lots of perfectly adequate and capable hardware. There are no legit reasons for this, and I would say for e-waste concerns it probably enters into unethical territory.

It requires TPM, and for a while AMD's software TPM implementation was buggy and caused stutters. That got me to push back my update to 11 to 'at least a year from now'; I don't want to suffer a bug while waiting for a BIOS patch if there's another issue like that.