If you cannot cannot resize open windows, the restore and resize windows feature is not working, or cannot minimize and restore open windows, see this post.

If you want a narrower or wider taskbar, you'll need to dive into Windows 11's registry.

How to Resize the Taskbar in Windows 11 The easiest way to change the Windows 11 taskbar size is with a registry edit. You can learn more about using the registry here, but as long as you follow ...