I have a new favorite System Settings button. Encountered it when adding a person to my iCloud Family.
Update:
Of course, it worked on the iPhone, the platform where Apple is actually concerned about the settings experience.

@ismh My favorite System Settings experience is when it throws up a big red “Update Apple ID Settings; some services require you to sign in again” error, you click “Sign in,” and it just… does nothing.

Truly amazing UX. (It works on the iPhone every time.)