To see the Google Drive app interface, you need to click the app’s icon that should appear in the menu bar at the top. If you haven’t worked with this app before, opening Google Drive can be a bit confusing at first because double-clicking its icon in the Application folder or clicking its icon in the Dock will open the app, but won’t automatically show you the Google Drive interface on your screen. Note that Google Drive won’t directly open if you are clicking its Dock icon, to open Google Drive, use its menu bar icon from the top. The reason Google Drive is not opening could be due to a problem in the syncing process. Still, if you are having any issues with Google Drive on your Mac, be sure to read the following lines to learn how to take care of them. Even if you are having any difficulties with it, resolving the problem would typically take nothing more than a restart of the app or of your Mac. Google Drive is a very useful app that rarely experiences any significant errors or other issues. There are many possible causes for syncing errors that could cause Google Drive to not work on Mac, but dealing with such an error is typically very easy.

Google Drive not working on Mac is usually caused by an error in the syncing process. How do I reconnect my Mac to Google Drive?.

Google drive icon not in system tray