Modify the Event Permalink if there is a Website URL in The Events Calendar 5.0

tribe_set_link_to_website_v2.php

/**
 * Modify the Event Permalink if there is a Website URL in The Events Calendar 5.0
 *
 * @param WP_Post $post Event Object
 *
 * @return WP_Post Event Object
 */
function tribe_set_link_to_website_v2( $post ) {

	$website_url = tribe_get_event_website_url( $post->ID );
	// Only swaps link if set
	if ( ! empty( $website_url ) ) {
		$post->permalink = $website_url;
	}

	return $post;
}

add_filter( 'tribe_get_event', 'tribe_set_link_to_website_v2', 100 );