Pop up window appears with 3 options to choose from.
Option 1 - Share your entire screen. This option allows you to show your full desktop view to the viewer. Make sure you have all the relevant information and remove unnecessary windows before you share your screen.
Option 2 - Share an Application Window. This option allows you to solely share a window with the viewer.
Option 3 -Share Chrome Tab. This option shows all the current tabs open in your browser. And these links could be shared with the viewers. This option is useful when you need to share any video links, websites etc.
But make sure you check your browser tabs before you click share to avoid any privacy concerns.
Once you pick an option. Click on the share button to share your screen with the viewer (s)