If you want more direct control over the user profile, the "Netplwiz" tool is a quick alternative. How To Change Your Windows 11 Username Fast!
Because Microsoft has shifted focus to online accounts, changing your local account name in Windows 11 can be surprisingly tricky. There are three different ways to do this depending on whether your account is purely local or if you are just trying to change the display name. how to change the name of my local account in windows 11 hot