Video
My brother is an OU fan. He watched this video with Jason Belzer who runs the OU Collective as well as Vanderbilt, GT, Rutgers, Wake Forrest, etc.
He is VERY transparent about how NIL works, talks specifics and talks about Dillon Gabriel and Cayden Green. Apparently OU spends $4M per year and is a top 15 spender. Each kid got at least $26k, with the average being $45k.
The most insightful and behind the current interview I have heard. Sorry it is about OU, but super interesting.