Joined Cases T-825/19 and T-826/19: Judgment of the General Court of 22 March 2023 — Tazzetti v Commission (Environment — Regulation (EU) No 517/2014 — Fluorinated greenhouse gases — Electronic registry for quotas for placing hydrofluorocarbons on the market — Undertakings with the same beneficial owner — Single producer or importer — Act having an adverse effect — Interest in bringing proceedings — Admissibility — Request to modify the application — Inadmissibility — Plea of illegality — Interpretation of an implementing regulation consistent with the basic regulation — Implementing power of the Commission)