Case C-523/20: Order of the Court (Tenth Chamber) of 3 March 2021 (request for a preliminary ruling from the Győri Törvényszék — Hungary) — Koppány 2007 Kft. v Vas Megyei Kormányhivatal (Reference for a preliminary ruling — Article 99 of the Rules of Procedure of the Court of Justice — Social security — Regulation (EU) No 1231/2010 — Applicable legislation — A1 certificate — Article 1 — Extension of A1 certificate to nationals of third countries residing legally in the territory of a Member State — Legal residence — Concept)