See also eg https://support.google.com/tagmanager/answer/9713667?hl=en
As CIO or CISO or CTO or Privacy Officer, you want to receive email notifications when a team publishes new changes.
Example: Marketing team publishes new changes and they may have forgotten to seek approval for embedding a new tag which now sends data to a third party.
Example: A malicious employee posts a custom code snippet to steal cookies / credentials.