Case T-718/20: Judgment of the General Court of 4 May 2022 — Wizz Air Hungary v Commission (TAROM; Rescue Aid) (State aid — Air transport — Support measure taken by Romania — Rescue aid to TAROM — Decision not to raise any objections — Action for annulment — Status as a party concerned — Safeguarding of procedural rights — Admissibility — Guidelines on State aid for rescuing and restructuring non-financial undertakings in difficulty — Measure aiming to prevent social hardship or to address market failure — ‘One time, last time’ principle — Effect of earlier aid granted before Romania’s accession to the European Union — Serious difficulties — Obligation to state reasons)