stopping an application from starting n boot up
The answers to this question provided in the community do not work for a MACBOOK PRO running the latest Monterey 12.6. The application is NOT listed in the Users & Groups menu. And in Finder the App itself has no selections for "open on startup or not" when you select that app. And in DOCK - Options, the "Open at login" is NOT checked for that application. And the app was NOT open at time of the last shutdown.