Public universities do publish salaries of all of their employees so competitors know exactly what some professor makes if they want to poach them, at least the university paid component.
But as someone who knows very little about FOIA, it generally seems like an interesting test case as to whether someone could access individual revenue share payments
The trend is that individual state legislatures are specifically making it exempt from their state's FOIA:
SC House rushes to keep secret some NIL deals between colleges, student athletes
A lawsuit is pending against the University of South Carolina after the school declined to release revenue sharing deals between student athletes and the school.
Plus other arguments schools are making to avoid disclosure:
Colleges withholding revenue-sharing contract details: How schools can remain tight-lipped on player payments
CBS Sports reached out to several top schools in search of transparency as the post-House v. NCAA settlement era begins