Case C-262/22 P: Judgment of the Court (Sixth Chamber) of 28 September 2023 — QI, QJ, QL, QM, QN, QP, QQ, QT, QU, QW, QX, v QK, QO, QR, QS, QV, European Commission, European Central Bank, European Council, Council of the European Union (Appeal — Action for damages — Economic and monetary policy — Restructuring of Greek public debt — Private sector involvement — Mandatory exchange of State bonds governed by Greek law — Collective action clauses — Activation — Damage relating to the reduction of the face value of the government bonds exchanged — Principle of proportionality)