Settings · How Settings is laid out

How do I find a setting when I do not know what it is called?

ComputerSettings, then the Search Settings box at the top of the list; type a word and pick the result.
PhoneSettings, then read down the three groups — Workspace, Plan & team, Account.

On desktop, the Search Settings box finds the field you mean and opens the screen that holds it. On the phone there is no search box, so the groups are the route: anything about the business itself is under Workspace, anything about money or people is under Plan & team, and anything about you or the app is under Account.