Query for front widget

I try to write a front widget, I try to get posts with this query but return
no post found

new WP_Query( apply_filters( 'widget_posts_args',
    ['posts_per_page' => $number,
    'no_found_rows'   => true,
    'post_status'     => 'publish',
    'post_type'       => 'linker',
    ], $instance))

    if ( ! $surl_query->have_posts() ) {
      echo "no post found";
    }