Prior to Windows 11 I could dock taskbar where I wanted it to be (since I'm right-handed, it was right side of the screen). After installing Windows 11 taskbar is firmly attached to the bottom and there is no way to move it. Besides consuming valuable screen height it is also extremely inconvenient - a lot of operations now require moving cursor across the whole screen.
Also if you're running more than one monitor you can't move the task bar to other monitors. Yes, it can be duplicated on all monitors but it doesn't fully duplicate it... it leaves out all the right hand icons and the clock.