Dynamic URL to redirect after submission based on processed input data

So far I cannot achieve this.

To use:

document.addEventListener( 'wpcf7mailsent', function( event ) {
location = '.....'
})

the event object needs include information about the URL.

The URL must be determined at PHP side after processing user input (basically email address). Then I would need to modify REST feedback to include that URL and access this value in JavaScript.

The problem is that within this hook:

$response = apply_filters( 'wpcf7_feedback_response', $response, $result );

I cannot access submitted form values to pick the email address and do the processing stuff to drop the URL into $response array.

Then I tried to go deeper into WPCF7_ContactForm’s submit() method attempting to pass some data through $result variable it returns. Unfortunately, it is not possible to modify this variable.

So my question is, if there is a better way to comply this task?

Alternatively, could you (developers) add filter hook allowing to modify $result variable of submit() method? The filter having access to $submission data would allow to create custom results based on submitted data (like dynamic URL for redirect).

It could look like:
$result = apply_filters( ‘wpcf7_submit_result’, $result, $this, $submission );