Case T-593/20: Judgment of the General Court of 18 May 2022 — Tirrenia di navigazione v Commission (State aid — Maritime transport — Service of general economic interest — Decision declaring the aid unlawful — Decision declaring the aid partly compatible and partly incompatible with the internal market and ordering its recovery — Rescue aid — Compatibility with the internal market — Period of six months — Extension — Requirement to submit a restructuring or liquidation plan — Guidelines on State aid for rescuing and restructuring firms in difficulty — Tax exemption — Advantage — Selective nature — Effect on trade between Member States — Adverse effect on competition — Excessive duration of the procedure — Legitimate expectations — Legal certainty — Principle of good administration)