The Form Templates menu has been renamed to Form Library and can now be found in the Builder tab when creating a new form. When first opening the Builder tab, an option will be displayed to open the Forms Library and start with one of the preconfigured templates.
Instructions
Navigate to Forms
Navigate to the Builder tab
Select Create From Template
Search for and select a form template
Preview the form template
Click Import Form Template
Edit the form and add additional elements as needed
Click Save