Create a path alias programmatically with Drupal 10

I wanted to create an automatic alias for nodes that have a date set. The pattern should be /events/node-title. Because the content type is also used for regular pages, I had to do this programmatically. Here is how I did it:

/**
 * Implements hook_node_insert().
 */
function MYMODULE_node_insert(NodeInterface $node) {
  if ($node->getType() == 'page') {
    MYMODULE_create_alias($node);
  }
}

/**
 * Implements hook_node_update().
 */
function MYMODULE_node_update(NodeInterface $node) {
  if ($node->getType() == 'page') {
    MYMODULE_create_alias($node);
  }
}

/**
 * Helper function to create alias.
 */
function MYMODULE_create_alias(NodeInterface $node) {
  if (isset($node->field_date) && !empty($node->field_date->value)) {
    // Check if Pathauto is enabled and set the pathauto state.
    if (\Drupal::moduleHandler()->moduleExists('pathauto')) {
      $node->path->pathauto = \Drupal\pathauto\PathautoState::SKIP;
    }

    // Base alias
    $base_alias = '/events/' . \Drupal::service('pathauto.alias_cleaner')->cleanString($node->label());
    $alias = $base_alias;

    // Initialize a counter
    $counter = 0;

    // Check if the alias already exists and modify it if necessary
    while (true) {
      $existing_alias = \Drupal::entityTypeManager()->getStorage('path_alias')
        ->loadByProperties([
          'alias' => $alias,
          'langcode' => $node->language()->getId(),
        ]);

      if (!empty($existing_alias)) {
        // Alias exists, modify it and check again
        $counter++;
        $alias = $base_alias . '-' . $counter;
      } else {
        // Alias is unique, break the loop
        break;
      }
    }

    // Create and save the unique alias
    $path_alias = \Drupal::entityTypeManager()->getStorage('path_alias')->create([
      'path' => '/node/' . $node->id(),
      'alias' => $alias,
      'langcode' => $node->language()->getId(),
    ]);
    $path_alias->save();
  }
}

This snippet takes into account already existing alias, language etc. Cheers!