Adding RSS Feed from Another WordPress Website

<?php // Get RSS Feed(s)
include_once( ABSPATH . WPINC . '/feed.php' );
  
// Get a SimplePie feed object from the specified feed source.
$rss = fetch_feed( 'https://your_url_rss_feed' );
  
if ( ! is_wp_error( $rss ) ) : // Checks that the object is created correctly
  
    // Figure out how many total items there are, but limit it to 5. 
    $maxitems = $rss->get_item_quantity( 3 ); 
  
    // Build an array of all the items, starting with element 0 (first element).
    $rss_items = $rss->get_items( 0, $maxitems );
  
endif;
?>
 <div class="newsletter_grid">
    <?php if ( $maxitems == 0 ) : ?>
        <div><?php _e( 'No items', 'my-text-domain' ); ?></div>
    <?php else : ?>
        <?php // Loop through each feed item and display each item as a hyperlink. ?>
        <?php foreach ( $rss_items as $item ) : ?>
            <div class="newsletter_item">
              <div class="newsletter_title">
                <a target="_blank" href="<?php echo esc_url( $item->get_permalink() ); ?>"
                    title="<?php printf( __( 'Posted %s', 'my-text-domain' ), $item->get_date('j F Y | g:i a') ); ?>">
                    <?php
                  $title = $item->get_title();
                  $limited_title = substr($title, 0, 70);;
                    ?>
                  <h3><?php echo $limited_title; ?></h3>
                </a>
              </div>           
              
            	<div class="newsletter_excerpt">
                  <?php 
                      $description = $item->get_description(); // Get the description
                      $limited_description = wp_trim_words( $description, 20 ); // Limit to 20 words
                      echo $limited_description; 
                  ?>
           		</div>
                    
                <div class="newsletter_date">
                  <?php 
                      //echo esc_html( $item->get_date('j F Y') ); 
                      echo date_i18n( 'j. F Y', false, false);    
                  ?>
            	</div>

  				<a target="_blank" class="newsletter_link" href="<?php echo esc_url( $item->get_permalink() ); ?>">Weiterlesen</a>
            </div>
        <?php endforeach; ?>
    <?php endif; ?>
</div>