Kali Linux is a powerful toolkit for security testing. In most cases, you can simply run it temporarily from a USB drive, but there are occasions when you want a dedicated Kali install for longer term testing. Please keep in mind that Kali is not a general purpose Linux distribution. It is not intended for daily use and may(ironically) prove insecure.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-install-kali-linux