Sounds like Built Brand has agreements with every player on roster. The agreement for non-scholarship players is equal to the cost of tuition.

"Built’s individual NIL agreements included $1,000 to scholarship BYU football athletes and compensation to walk-on players that would be comparable to the tuition costs for an academic year at the faith-based campus."

https://kslsports.com/474620/byu-football-ncaa-built-bar-nil-probe/#:~:text=Built's%20individual%20NIL%20agreements%20included,at%20the%20faith%2Dbased%20campus.