zsh killed sudo --volume /Volumes/myvolume error on Monterey 12.1

Yes impossible.

To perform this action will require booting from a Bootable Installer. 

This will have to be performed from a Qualifying Computer to run the version of macOS to be made on the Bootable Installer. Example : Bootable Installer of High Sierra would have to be done on a computer that Qualifies to run High Sierra.

The Apple Licence of Use prohibits downgrading to a version of macOS Older than the version the computer Originally came installed With.

In this case the, M1 Computer is too New and does not qualify to run High Sierra.

Even if all one is attempting to make a Bootable Installer of High Sierra for other purposes.

The Solution is to get access to a qualifying Apple Computer that has run or qualifies to run High Sierra and make the Bootable Installer.

There is no --volume option to sudo.

Generally following sudo is another command. What command did you really want to run?

PS. zsh, bash, ksh, sh, csh, tcsh, etc... do not have anything to do with the behavior of a specific command, especially sudo, so switching to zsh should have not had any effect on what you are doing.

I'm assuming the createinstallmedia utility itself is issuing the kill(getpid(),SIG_KILL); to itself.

It happens to me on my M1 Max system.

I say it is killing itself, as there is not monitor utility that goes around issuing the SIG_KILL, and it is not the kind of signal that gets triggered by doing something except issuing the kill() call.

Welcome

Do come back to the ASC Forums, in the future, if / or when additional question may arise