add_custom_column_to_woocommerce_orders.php

<?php

add_filter( 'manage_shop_order_posts_columns', 'musilda_custom_order_column', 11 );

function musilda_custom_order_column( $columns ) {
        
        $expanded_columns = [];
        foreach ( $columns as $key => $value ) {
                $expanded_columns[$key] = $value;
                if ( $key == 'name' ) {
                        $expanded_columns['order-weight'] = __( 'Weight', 'musilda' );
                }
        }
        return $expanded_columns;
}