Case T-126/20: Judgment of the General Court of 14 December 2022 — Autoridad Portuaria de Bilbao v Commission (State aid — Ports sector — Corporate tax exemption scheme implemented by Spain in favour of ports in the province of Biscay — Decision declaring the aid incompatible with the internal market — Existing aid — Advantage — Burden of proof — Selective nature — Effect on trade between Member States — Distortion of competition — Appropriate measures)