Proposal would be to have a checkbox or another hint expressing that this entry has an additional 2 Factor Authentication.
Details about the 2FA used e.g. Hardware Token, Authenticator app or SMS... very welcome...
Sorry for my reply. I'm only F-Secure user (their home solutions).
Maybe it is good feature request (as checkbox). Then it possible to connect with "Statistics"-feature (where will be visible how many accounts with 2FA or 2SV).
As current potential workaround (since anyway required 'user interaction') -> possible to add words like "2FA" (or "2SV") to title of KEY entry. Then it possible to filter results(or just will be visible hint; even it is not an useful view with such design).