installer mac os

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

The Bootable Installer can Only be performed on an Apple Computer 

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 Monterey would have to be done on a computer that Qualifies to run Monterey.

Computer Qualify for the Monterey upgrade

Notation: If the computer being used to perform this action is Too New or Too Old to qualify to run the version of macOS - this computer can not be used.

Alternative is, to gain access to a Qualifying Apple Computer from a family member, friend or associate.

you may follow suggestion here in earlier discussion.

as the Monterey 12.6.1 is more stable (as of now, Jan-2023), i suggest to use 12.6.1,

so in the command-line of that linked page, the word "10.15.7" need to be changed into "12.6.1"

and by the way, dont use the "$" symbol in front of the commands, thats just indicating its a prompt symbol in Terminal app.

The latest version of Monterey as of Jan 23, 2023 is now 12.6.3