Now that you have set up the workflow to send email notifications to the respondents whenever they submit a new response, let us run a test to ensure its functionality.
Open your Google Form, and click on the eye-shaped Preview icon. This will open the live Google Form in a new tab.
Fill the form with some sample data, and click on submit. This should instantly trigger an email notification to the address(es) that you have specified in the previous step.
Go to your Gmail inbox or sent folder, and if the workflow has been correctly set up, you should see a copy of the email notification.