getNodeTerms example

foreach ($values as $result) {
      if (!empty($result->{$this->aliases['nid']})) {
        $nids[] = $result->{$this->aliases['nid']};
      }
    }

    if ($nids) {
      $vids = array_filter($this->options['vids']);
      if (empty($this->options['limit'])) {
        $vids = [];
      }
      $result = \Drupal::entityTypeManager()->getStorage('taxonomy_term')->getNodeTerms($nids, $vids);

      foreach ($result as $node_nid => $data) {
        foreach ($data as $tid => $term) {
          $this->items[$node_nid][$tid]['name'] = \Drupal::service('entity.repository')->getTranslationFromContext($term)->label();
          $this->items[$node_nid][$tid]['tid'] = $tid;
          $this->items[$node_nid][$tid]['vocabulary_vid'] = $term->bundle();
          $this->items[$node_nid][$tid]['vocabulary'] = $vocabularies[$term->bundle()]->label();

          if (!empty($this->options['link_to_taxonomy'])) {
            $this->items[$node_nid][$tid]['make_link'] = TRUE;
            $this->items[$node_nid][$tid]['path'] = 'taxonomy/term/' . $tid;
          }