You can easily link your Google Analytics account to the forms you create in forms.app. You can also track conversions. Remember that you can do all this with the FREE package.
Steps to follow:
1. Select the account you'd like to integrate on your Google Analytics.
2. Go to forms.app and select the form to which you want to add Google Analytics. Then click the form settings icon to paste your Tracking ID into the Google Analytics section.
When submitting your forms, we also submit a Google Analytics event.
You can find live submissions in Google Analytics in the Real-time > Events.