The benefits of signing in to the Zoom App allows you to remember settings such as your name, and allows you to communicate with anyone else who is currently signed in to the app. You can also create groups of people after they logged in to the zoom app once.
1. What kind of device are you using?
The following instructions are written for Apple iOS, but it should translate similarly to Android.
The following instructions were written for Windows 10, but it should translate over to older versions of Windows and macOS.