LayoutWithoutLabel.php

<?php

namespace Drupal\layout_builder_test\Plugin\Layout;

use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Layout\LayoutDefault;

/**
 * Layout plugin without a label configuration.
 *
 * @Layout(
 *   id = "layout_without_label",
 *   label = @Translation("Layout Without Label"),
 *   regions = {
 *     "main" = {
 *       "label" = @Translation("Main Region")
 *     }
 *   },
 * )
 */
class LayoutWithoutLabel extends LayoutDefault {
    
    /**
     * {@inheritdoc}
     */
    public function defaultConfiguration() {
        return [];
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
        return $form;
    }
    
    /**
     * {@inheritdoc}
     */
    public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
    }

}