I Covered this intimately in my the latest write-up Arms-On: Kali Linux to the Raspberry Pi four. Generally you simply download the Kali Linux ARM Image with the Raspberry Pi, copy it to your microSD card, and you also're all set to go. You don't really need to go through https://www.instagram.com/tantramantraaurvigyaan/p/C9flC7WonWw/