I am using a 2018 MBA running Big Sur
I wanted to create a persistent bootable USB with Kali Linux and have followed the exact instructions as given in this article: https://medium.com/macoclock/install-kali-linux-live-usb-with-persistence-using-macos-b1574c996491
However after powering on and pressing the option key, the bootable USB does not show up. This is partition containing the OS:
Here, it shows Bootable "No" but I don't know why. Also this partition is not mounted and Big Sur isn't allowing me to mount it as well and shows an error.
I am not sure what the issue is here and would be extremely grateful if someone helped out