When is dropoff in Form Analytics counted?

in Form Analytics we have the statistic ‘dropoff’ that tells me after which field a user has dropped the form. When exactly does a dropoff happen? Can the user interact with other elements in the form/page or has the dropoff to happen exactly after interacting with a field?

Kind regards

The drop off will be calculated when a user interacts with the form then navigates away without submitting the form.