Transparent has a unique meaning in the context of computing And a different one in design, business and physics.

Importantly however; Tech people can claim they are being 'transparent'. To them this can mean no visible difference to the user- and to everyone else means visible/public and available for scrutiny.

So yes, I am sure Zuckerberg is focused on 'transparency'.

Quite so. A less intentionally disingenuous word for the computing context would be "hidden".