Custom endpoint for WP API returning multiple queries

wp-custom-endpoint.php

<?php
/**
 * Custom REST API Endpoint: Get Home Content
 * Gist Keywords: wordpress, api, rest, content
 * 
 * @category   WordPress
 * @author     Knol Aust
 * @version    1.0.0
 * @description Retrieves featured content and the three most recent posts via a custom REST API endpoint. This example shows you can use one endpoint to pull in various queries from the API for a page like frontpage. 
 */

function custom_rest_get_home_content( $params ){
    // Query the featured content
    $feature = get_posts([
        'post_type' => 'page',
        'pagename' => 'featured',
        'post_status' => 'publish'
    ]);
    // Get three most recent posts
    $updates = get_posts([
        'posts_per_page' => 3,
        'post_status' => 'publish'
    ]);
    
    $controller = new WP_REST_Posts_Controller('post');
    $array = [];
    foreach ( $updates as $update ) {
        $data = $controller->prepare_item_for_response($update,$request);
        $array[] = $controller->prepare_response_for_collection($data);
    }

    $home_content = array(
        'feature' => $feature,
        'latest' => $array
    );
    return $home_content;
}
    
// Register the custom REST route
add_action( 'rest_api_init', function () {
    
    register_rest_route( '/custom/v1/', 'get-home-content',array(
        'methods'  => WP_REST_Server::READABLE,
        'callback' => 'custom_rest_get_home_content'
    ) );
} );