Case C-261/20: Judgment of the Court (Grand Chamber) of 18 January 2022 (request for a preliminary ruling from the Bundesgerichtshof — Germany) — Thelen Technopark Berlin GmbH v MN (Reference for a preliminary ruling — Freedom to provide services — Article 49 TFEU — Directive 2006/123/EC — Article 15 — Architects’ and engineers’ fees — Fixed minimum tariffs — Direct effect — Judgment establishing a failure to fulfil obligations delivered during proceedings before a national court or tribunal)