In addition to not having to pay out at the end of employment, they also do the "unlimited vacation" thing to reduce the liability of unpaid PTO on the books. W

In addition to not having to pay out at the end of employment, they also do the "unlimited vacation" thing to reduce the liability of unpaid PTO on the books. When our revenue was hit hard in the early days of covid, the company I work for asked everyone to take a week of their PTO to help the financials look better.