There are more blocks in a year during a leap year. Using a static value for the number of blocks in a year will eventually lead to the wrong answer
There is 1 instance of this issue:
https://github.com/code-423n4/2022-05-vetoken/blob/2d7cd1f6780a9bcc8387dea8fecfbd758462c152/contracts/BaseRewardPool.sol#L343-L345
