Navigate through Layout Builder Components

LayoutBuilderComponents.php

<?php

namespace Drupal\module\Service;

use Drupal\node\NodeInterface;

/**
 * Helper Class.
 */
class Helper {

  /**
   * Gets the Id of the first Webform Component inside Layout Builder.
   *
   * @param \Drupal\node\NodeInterface $node
   *   Token data argument.
   *
   * @return string
   *   Webform ID.
   */
  public function getWebformId(NodeInterface $node) : string {
    if (!$node->hasField('layout_builder__layout')) {
      return '';
    }

    foreach ($node->get('layout_builder__layout') as $item) {
      $components = $item->get('section')->getValue()->getComponents();
      foreach ($components as $component) {
        /** @var \Drupal\layout_builder\SectionComponent $component */
        if (isset($component->toArray()['configuration']['webform_id'])) {
          return str_replace('_', '-', $component->toArray()['configuration']['webform_id']);
        }
      }
    }
  }

}