There are several third-party tools available that can help you change the taskbar icon size, such as:
One of the first things users notice after upgrading to Windows 11 is the centered, minimalist taskbar. While the new design looks sleek, many users find the default icon size to be a bit "Goldilocks"—either too large and clunky on smaller screens, or too small to see comfortably on high-resolution monitors. windows 11 taskbar icon size
If you are looking for the classic "Small Taskbar Buttons" look from Windows 10, you will need to edit the Windows Registry. This method allows you to shrink the taskbar icons specifically without changing your entire desktop scaling. There are several third-party tools available that can