Video calling apps like Zoom call it ‘sharing’ but Google Meet likes to call it ‘presenting’. That’s why you won’t find the share button in Meet. Instead, click on the ‘Present now’ button at the bottom of the screen to reveal sharing options. You can present your entire screen, a window or just a Chrome browser tab. Clicking on the window option will allow you to select any open window on your computer. That could be an open folder, file or an app. The rest will stay hidden.