Before macOS 12.3, upgrades and updates were different, and only admin users could authenticate the installation of an upgrade to macOS. Now even standard users can, as explained here.
admin user
Malware tries to trick you into providing it your password. How to recognise genuine requests from those fakes.
How can you tell whether a request for a keychain password is genuine? What about a regular request for password authentication?
While you may feel more comfortable working with the more limited privileges of a normal rather than admin user, does that improve security?
A helping hand for those who run in normal user mode and cannot access log contents as a result.
When should you create a new user, and how should you delete them?
To OS X’s Unix heart, you are not a name but a user ID. The first admin user account is 501, and something rather special.
My iTunes Music folder did not migrate properly to my new Mac. How can I fix it?
The Eclectic Light Company 