Anything that tracks employees actions beyond high-level "are they doing their job according to the job descriptions" is forbidden by privacy laws and otherwise will be striken down by a workers council.

That's not just specific to digital stuff. E.g. warehouse cameras that film anything else beyond securing entries/exits, like they are commonplace in e.g. the US don't exist for the same reason.

I think he's picturing it as being used by employer's to monitor employees.