CommentDisplayConfigurableTestHooks.php

<?php

declare (strict_types=1);
namespace Drupal\comment_display_configurable_test\Hook;

use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Hook\Attribute\Hook;

/**
 * Hook implementations for comment_display_configurable_test.
 */
class CommentDisplayConfigurableTestHooks {
    
    /**
     * Implements hook_entity_base_field_info_alter().
     */
    public function entityBaseFieldInfoAlter(&$base_field_definitions, EntityTypeInterface $entity_type) : void {
        if ($entity_type->id() == 'comment') {
            foreach ([
                'created',
                'uid',
                'pid',
                'subject',
            ] as $field) {
                
                /** @var \Drupal\Core\Field\BaseFieldDefinition[] $base_field_definitions */
                $base_field_definitions[$field]->setDisplayConfigurable('view', TRUE);
            }
        }
    }
    
    /**
     * Implements hook_entity_type_build().
     */
    public function entityTypeBuild(array &$entity_types) {
        // Allow skipping of extra preprocessing for configurable display.
        $entity_types['comment']->set('enable_base_field_custom_preprocess_skipping', TRUE);
    }

}