Variety has posted Giancarlo Valdes interview with Mateusz Tomaszkiewicz who is the quest director for Cyperpunk 2077. He said the following on Keanu being perfect for the Johnny Silverhand role:
“Johnny is a person who stands for something, that the way the corporations have organized this specific society is wrong. He doesn’t like what they’re doing with the world. … And Keanu has a long history of playing characters who do exactly this. They stand for an idea. So we believed that he’d be the right pick for the character.”