Under the 'Taskbar behaviors' option you'll see a dropdown to change the Taskbar alignment. Simply change your selection from 'Center' to 'Left' and voila! You've realigned your Windows 11 Start Button to the left side of your taskbar.
The rest of the apps will follow suit, and your taskbar will remind you of the good old days of Windows 10 and prior.
There are so many new features in Windows 11 it's almost hard to keep up with them all.