There are a few ways to customize the Windows Taskbar, we reviewed a few months ago FalconX and were impressed with its functionality.
https://github.com/vhanla/TaskbarDock
review
https://www.ghacks.net/2020/03/07/hide-the-start-button-system-tray-center-the-taskbar-icons-or-make-it-transparent/
https://github.com/vhanla/TaskbarDock
review
https://www.ghacks.net/2020/03/07/hide-the-start-button-system-tray-center-the-taskbar-icons-or-make-it-transparent/