Team Forms' close integration with the Microsoft 365 suite, enables you can use PowerBI to report on your form usage and gain valuable insights. You can report high-level metrics like total submission per form all the way down to responses to specific questions. Since all data in Team Forms is stored in your team's SharePoint as both a document and list you can simply use PowerBIs' inbuilt SharePoint data source to connect to Team Forms.
Team Forms provides a quick start template that will pull in all the data you need to get started with reporting. You can access the template from the link below.