Not sure if this is a joke or not, but you can right-click the taskbar, click taskbar settings, and under the "Taskbar behaviors" tab there's a "Taskbar alignment" drop down with options "Left" and "Center.
Their best bet is to use the relatively reputable ExplorerPatcher. However, using ExplorerPatcher requires fiddling with your antivirus settings and weakening your PC's security, so maybe trying to live with the new normal is better?
https://en.wikipedia.org/wiki/Windows_11#/media/File:Windows...