Windows 11 finally gets vertical and small taskbar in new update

The latest Windows 11 preview build in the Experimental Channel finally introduces two long-anticipated taskbar features, ...

Windows 11 insiders can now test moving the taskbar to the side of the screen

Microsoft is now testing the option to move the Taskbar to the side of your screen on Windows 11.
Yahoo

Unlock the Secret to Resizing Your Windows 11 Taskbar the Easy Way

Add the TaskbarSi value to the Windows Registry. Change value data to 0 for a small taskbar or 2 for bigger icons. Restart or log out for it to take effect. The easiest way to change the Windows 11 ...