The userInitiated read-only property of the NavigateEvent interface returns true if the navigation was initiated by the user (e.g., by clicking a link, submitting a form, or pressing the browser's "Back"/"Forward" buttons), or false otherwise.
Note: The table found at Appendix: types of navigations shows which navigation types are user-initiated.
A boolean value—true if the navigation is user-initiated, false if not.
userInitiated for an eventnavigation.addEventListener("navigate", (event) => {
console.log(event.userInitiated);
});