To use the Hippo Video quick record widget within Google Slides, the Hippo Video Chrome Extension needs to be installed. Follow the steps given below:
Go to the Chrome Web Store by clicking on Apps on the top left corner of your chrome browser.
Search for Hippo Video under Extensions in the search tool placed on the left.
You will see Hippo Video: Screen recorder & Video Editor listed on the right. Click on Add to Chrome to install Hippo Video chrome extension.
Click on Add extension in the pop-up box.
You will notice the Hippo Video icon getting added in your browser once the installation is complete.
Switch the toggle state to On, next to Google Slides to enable integration.