Did I do something odd when I set up my windows 11 machine?

If Microsoft has something marked as admin access, it just presents me with a dialogue asking if I want to do whatever as admin

I mean it's not like I have open hardware so there's a whole lot of my machine I really have no practical access to, but everything this guy wants is there

Him saying he's the owner suggests a private machine, so no corporate lockout from system components. Do computer shops set up admin accounts and lock their customers out as low-privileged users?