This is the pension game. When the amount of your pension is determined by your last 3 years of compensation before retirement, you do everything you can to maximize overtime in those 3 years.
So people work as much as possible during that time and your peers are expected to make way for you to get as many hours as possible because it’s your turn.
One of many reasons why pensions are broken and going away. When the payout math was based on what people were typically paid but everyone plays games to double or triple it during the calculation window it breaks down.
Would be easy to fix by making it calculated over an entire career rather than the last 3 years, but when the people who make the rules also want their pension gamified you can’t get the rules changed.
So instead they’re just going away for everyone.
It would be trivial to exclude overtime from the last 3 years. People gaming them is not why pensions are going away.