While meetings can be started and scheduled from the Zoom web portal, you can also schedule and start meetings directly from the Zoom application. It is also important to access the Zoom application to set and utilize certain in-app settings/features, such as virtual background, audio/video settings, as well as other options.
Notes:
Note: If Launchpad is on your dock, you can click that to access your applications list, and open Zoom from there.
If the Zoom icon has disappeared from your desktop and cannot locate it after following the steps above, you need to install the Zoom desktop client.