If you want to disconnect one of your forms from your Google Sheet, click on the profile icon located at the top-right corner, and from the dropdown menu, select App Store.
In the App Store, click on Google Sheets. A new popup will appear, presenting three tabs:
Description: Provides details about what the integration does.
Add new integration: This is where you can set up a new connection.
Active integrations: Manage existing connections here (edit, delete, or resync).
Select Active integrations;
Here, you can see three options:
Edit: Update settings or change the linked form or sheet.
Delete: Remove the integration if it's no longer needed.
Resync: Manually synchronize the data between the form and the Google Sheet.
Disconnect and delete Google connections from the delete option.