A shortcode to display EE4 events in a similar way that EE3 did. With the Smoothness jQuery UI styles. Add this code to a site-specific plugin, activate it, then add [espresso_legacy_events] to a WordPress page or post.

shortcode_example.php

<?php // only add this opening PHP tag if starting with a new file with no opening PHP tag

function my_ee_legacy_events_shortcode($args) {
    if(!class_exists('EventEspresso\core\domain\services\wp_queries\EventListQuery')){
        return;
    }
    global $wp_scripts;
 
    // get registered script object for jquery-ui
    $ui = $wp_scripts->query('jquery-ui-core');
 
    // tell WordPress to load the Smoothness theme from Google CDN
    $protocol = is_ssl() ? 'https' : 'http';
    $url = "$protocol://ajax.googleapis.com/ajax/libs/jqueryui/{$ui->ver}/themes/smoothness/jquery-ui.min.css";
    wp_enqueue_style('jquery-ui-smoothness', $url, false, null);
    $args = shortcode_atts(
        array(
            'limit'         => 100,
            'show_expired'  => FALSE,
            'category_slug' => NULL,
            'sort'          => 'DESC', 
            'order_by'      => 'start_date',
        ), 
        $args, 
        'espresso_legacy_events'
    );

    $loop = new EventEspresso\core\domain\services\wp_queries\EventListQuery( $args );
    $big = 999999999; // need an unlikely integer
    $pagination = paginate_links( array(
        'base' => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
        'format' => '?paged=%#%',
        'current' => max( 1, get_query_var('paged') ),
        'total' => $loop->max_num_pages,
        'show_all'     => TRUE,
        'end_size'     => 10,
        'mid_size'     => 6,
        'prev_next'    => TRUE,
        'prev_text'    => '&lsaquo; PREV',
        'next_text'    => 'NEXT &rsaquo;',
        'type'         => 'plain',
        'add_args'     => FALSE,
        'add_fragment' => ''
    ));
    
    $output  = '<div class="ui-widget">';
    $output .= '<article class="ee-event archived">';
        if( $loop->have_posts() ) {
            // loop through posts
            while ( $loop->have_posts() ) : $loop->the_post();

    global $post;
    $event = EEH_Event_View::get_event();
    $output .= '<h3 style="margin-bottom:0;padding-left: 1rem;" class="ui-widget-header ui-corner-top event-title"><a href="' . get_the_permalink() . '">' . get_the_title() . '</a></h3>';
    $output .= '<div style="padding:1rem" class="ui-widget-content ui-corner-bottom event-items">';
    $output .= '<p class="event-time"><strong>Date and Time:</strong>&nbsp;<span class="start-date">' . espresso_next_upcoming_datetime('', '', $post->ID, false ) . '</span></p>';

    if ( $event instanceof EE_Event ) {
      if ( ! $event->is_sold_out() && $event->is_upcoming() ) {
    // grab array of EE_Ticket objects for event
      $tickets = EEH_Event_View::event_tickets_available( $post->ID );
      // grab first ticket from array
      $ticket = reset( $tickets );
      //check if the ticket is free, set the display to 'Free'
      if ( $ticket instanceof EE_Ticket ) {
        $ticket_price = $ticket->pretty_price();
        $ticket_price_data_value = $ticket->price();
        $ticket_price = $ticket_price_data_value == 0 ? 'Free' : $ticket_price;
        $output .= '<p class="price">';
        $output .= '<strong>Price:</strong>&nbsp;'. $ticket_price . '</p>';
      }
      $output .= '<p class="spaces-available">';
      $output .= '<strong>Available Spaces:</strong>&nbsp;';
      $output .= $event->spaces_remaining_for_sale();
      $output .= '</p>';
      $output .= '<p><a class="ui-button ui-button-big ui-priority-primary ui-state-default ui-state-hover ui-state-focus ui-corner-all" href="' . get_the_permalink() . '">Register</a></p>';
    }
  }

      $output .= '</div>';
            endwhile; 
        }
    $output .= '</article>';
    // pagination links
    $output .= ! empty( $pagination ) ? '<div class="ee-pagination-dv clear">' . $pagination . '</div>' : '';
    $output .= '</div>';
    
    wp_reset_postdata();
    return $output;
}
add_shortcode('espresso_legacy_events', 'my_ee_legacy_events_shortcode');