Scrotus is one of the highlights of Furiosa: A Mad Max Saga, and here is what happens to the character after the prequel and why he isn’t in Mad Max: Fury Road. Scrotus is one of the children of Immortan Joe, with him working alongside Rictus to enforce Immortan Joe’s rule throughout their time at the Citadel. Sadly, Scrotus is absent from the story of Mad Max: Fury Road without explanation, with this being one of the biggest mysteries in Furiosa: A Mad Max Saga.
https://screenrant.com/mad-max-scrotus-what-happened-after-furiosa/