Case C-545/19: Judgment of the Court (Second Chamber) of 17 March 2022 (Request for a preliminary ruling from the Tribunal Arbitral Tributário (Centro de Arbitragem Administrativa — CAAD) — Portugal) — AllianzGI-Fonds AEVN v Autoridade Tributária e Aduaneira (Reference for a preliminary ruling — Article 63 TFEU — Free movement of capital — Taxation of dividends paid to undertakings for collective investment (UCIs) — Resident and non-resident UCIs — Difference in treatment — Withholding tax imposed solely on dividends paid to non-resident UCIs — Comparability of the situations — Assessment — Account to be taken of the tax regime applicable to shareholders or unitholders in UCIs and of whether resident undertakings are subject to other taxes — None)