Why is Google indexing management not applicable to the live version?

Why is Google indexing management not applicable to the live version?

I have a task to prevent Google's crawler from indexing some content. I
have read, that if I have this kind of html:
<!--googleoff: index-->
<!--googleon: index-->
then googleoff tells Google's crawler to not index the content, while
googleon tells Google's crawler to index to content. So far, so good. So,
the content which should not be indexed by Google's crawler should be
between those comments. I have wrapped all the content which should be
excluded from Google's indexing into those comments, using the googleoff
and googleon feature and all the content to be excluded from Google's
indexing is correctly wrapped inside those comments locally and on the
staging repo. However, I do not see the comments containing the googleoff
and googleon instructions in the HTML of the live version. What could be
the cause of this? Why are the google indexing instructions available in
all my repos except the live version? I think this might be an issue with
the settings, but I am not sure that I am right and I am not sure where
should I look for the source of the problem?