Why is the name in cmd path not changing in windows 11?

I have just bought a new laptop and installed windows 11 on it, my username was called ‘eigenaar’ at the beginning, which is ‘owner’ in my native language. So I changed that in the control panel >> user account settings to MSM. Now I have this:

Now when I opened my cmd the path looks like this:

My desired output was that my path in cmd should have looked like this: C:UsersMSM>

I googled around but could not get it solved, hope you guys can help me.