To summarize, a binary information. For your convinience, here are screenshots of that form:
The log looks like this:
21:26, 29 April 2020 Martin Urbanec talk contribs block checked if User:Martin Urbanec had two-factor authentication enabled (test)
and is available only to those who can view 2FA enrollment status (as-of today, no one, once this gets resolved, the stewards).
To clarify, this ticket is about the stewards only. Traditionally, the stewards don't change staff's power without direct request to do so made by the Foundation. So, if and how staff will have this depends on further discussion and is out of scope. I hope this makes sense.
Just spoke with Jan and the privacy team in Legal, and both are comfortable with proceeding in applying this right to the Stewards group.
I'm not sure about the staff thing just yet. I don't think it is necessary since those who need this data can access it through the databases.