Searching custom fields is removing search on the post_title column

I have the following custom search active in our WP admin for only administrators

add_action('pre_get_posts', 'query_custom_admin_search', 21  );
function query_custom_admin_search( $wp_query ) {
    global $current_user;

    if( is_admin() ) {
        if (get_current_user_role()=="administrator"){
            if ( $wp_query->query['post_type'] != "apartments" ){
                return;
            }else{
                $custom_fields = array("city","state_county",);
                $search_term = $wp_query->query_vars['s'];
                
                if ( $search_term != '' ) {
                    $meta_query = array( 'relation' => 'OR' );
                    foreach( $custom_fields as $custom_field ) {
                        array_push( $meta_query, array(
                            'key' => $custom_field,
                            'value' => $search_term,
                            'compare' => 'LIKE'
                        ));
                    }
                    $wp_query->set( 'meta_query', $meta_query );
                };

                return;
            }
        }else{
            return;
        }
    }else{
        return;
    }
}

This searches custom meta keys that we need to check and it works great. The only problem is that the default search columns in the wp_posts table such as post_title seem to no longer be searched.

How can I do both in this query ?