Case C-721/20: Judgment of the Court (Fourth Chamber) of 27 October 2022 (request for a preliminary ruling from the Kammergericht Berlin — Germany) — DB Station & Service AG v ODEG Ostdeutsche Eisenbahn GmbH (Reference for a preliminary ruling — Rail transport — Article 102 TFEU — Abuse of a dominant position — Directive 2001/14/EC — Access to railway infrastructure — Article 30 — Railway regulatory body — Review of infrastructure charges — National courts — Review of charges in the light of competition law — Division of competence between the regulatory authority and the national courts)