Set default fallback image on archives in Genesis

functions.php

<?php

add_filter( 'genesis_get_image_default_args', 'prefix_set_image_fallback' );
/**
 * Set default fallback image on archives.
 *
 * @since  1.0.0
 *
 * @param  array $args Default image args.
 *
 * @return array
 */
function prefix_set_image_fallback( $args ) {
	if ( ! isset( $args['context'] ) ) {
		return $args;
	}

	$id   = '1381'; // <-- Change this value.
	$html = wp_get_attachment_image( $id, $args['size'], false, $args['attr'] );
	$url  = wp_get_attachment_image_src( $id, $args['size'], false );

	$args['fallback'] = [
		'url'  => $url,
		'html' => $html,
	];

	return $args;
}