Anyone else intentionally holding 2 years of cash before retirement?

Age 51, targeting retirement at 59 or 60. Risk tolerance medium-low. im considering building a larger cash wedge than most advice suggests because job security in my field feels shakier now and I want optionality.

Current split:
- 58% equities
- 22% bonds
- 20% cash

Part of me worries im overdoing safety too early. Part of me thinks the whole point of money is to buy breathing room