wp_get_post_terms()

wp_get_post_terms( int $post_id, string|string[] $taxonomy = 'post_tag', array $args = array() ): array|WP_Error

function wp_get_post_terms( $post_id = 0, $taxonomy = 'post_tag', $args = array() ) {
	$post_id = (int) $post_id;

	$defaults = array( 'fields' => 'all' );
	$args     = wp_parse_args( $args, $defaults );

	$tags = wp_get_object_terms( $post_id, $taxonomy, $args );

	return $tags;
}