Discretion

The Legislative Analyst's Office (LAO) has come out with its review of the 2021-22 state budget enacted by the legislature. Below is what the LAO classifies as "discretionary" spending. Note that the largest chunk is deferred maintenance. Exactly why maintaining the physical plant of the campuses is discretionary while other things are not is unclear. 

All figures are in $millions.

Source: https://lao.ca.gov/Publications/Report/4448/1 which contains the Appendix to

https://lao.ca.gov/reports/2021/4448/2021-Spending-Plan-082421.pdf.