[Altavia]

Crimped end is facing the wrong direction.

To prevent lint build up inside the duct run, the crimped end of the pipe should always point away from the airflow source.

Flex hose is designed to fit (very snugly) around the smooth end. Lint would collect in the ridges, creating a fire hazard, in the installation shown here.

Dryer Duct Installation Troubleshooter | Dryerbox