Case C-355/22, Osteopathie Van Hauwermeiren: Judgment of the Court (Sixth Chamber) of 5 October 2023 (request for a preliminary ruling from the rechtbank van eerste aanleg Oost-Vlaanderen afdeling Gent — Belgium) — Osteopathie Van Hauwermeiren BV v Belgische Staat (Reference for a preliminary ruling — Taxation — Common system of value added tax (VAT) — Directive 2006/112/EC — Maintenance of the effects of national legislation incompatible with EU law)