Every offer Brex makes is a total compensation number, and employees can choose how much cash versus how much equity they want.
This is one of the many passages I read in books and articles on a daily basis. They span many disciplines, including art, artificial intelligence, automation, behavioral economics, cloud computing, cognitive psychology, enterprise management, finance, leadership, marketing, neuroscience, startups, and venture capital.
I occasionally add a personal note to them.
The whole collection is available here.