For what it’s worth, here’s what I would do to avoid this being dragged out in courts for years to come.
For cheating Man City should have been disqualified from every cup competition in the seasons they broke the rules.
For this, I’d make them pay a set fee to every team that they played along the way, equivalent to the gate receipts a club would have received in the next round.
For each season they broke the rules, I’d implement a points deduction equivalent to what they would have received that season - then adjust the league tables accordingly - Man City would then compensate each team based on lost earning by finishing lower in the table.
Then a set fee for each team missing out on Champions League, Europa League, and Europa Conference.
This way fine money goes directly to the clubs impacted by the cheating.
Further to this, I would declare the owners not fit and proper to run a football club and force a sale.
For the non compliance I would give them an 80 point deduction this season and force their relegation to the championship.