How do I stop Google Forms from automatically saving?
To disable this feature, within Google Forms, go to Settings > Presentation > Restrictions and select “Disable autosave for all respondents”.
Does Google Forms automatically save?
When you fill out a Google Form in your Google account, your progress is automatically saved as a draft for 30 days. This means if you can't complete a form or need to switch devices, you don't have to start over the next time you open the form. Important: If you're offline, autosave doesn't work.