Anyone know where to put the policy file on MacOS? And can you do this even on a corporate machine?
I think most people use an enterprise MDM like JAMF or Intune, but manually creating the file at /Library/Managed Preferences/com.google.Chrome.plist might also work.
If you have write permission to the folder, you can do this on a corporate machine, but your IT department probably has a preferred configuration that will overwrite your changes.
In short: Ask your system administrator.