display post count in archive page that have relation with another taxonomy term

SOLUTION

  <?php
    $args = array(
        'post_type' => 'product',
     'post_status'=>'publish',
        'tax_query' => array(
            'relation' => 'AND',
            array(
                'taxonomy' => 'sectors',
                'field'    => 'slug',
               'terms'    => 'garden',
            ),
            array(
                'taxonomy' => 'season',
                'field'    => 'slug',
               'terms'    => 'winter',
            ),
        ),
    );
    $query = new WP_Query( $args );
    
    echo $query->post_count ;
    
    
    
    ?>