While your experience is much more like the standard for handling classified material I don't know if it's comparable to what those in the leadership at the state department experienced given the findings in the OIG(1) report that came out earlier this year. They looked some twenty years of record retention policies at the state department and concluded.
"Longstanding, systemic weaknesses related to electronic records and communications have existed within the Office of the Secretary that go well beyond the tenure of any one Secretary of State."
"the Department generally and the Office of the Secretary in particular have been slow to recognize and to manage effectively the legal requirements and cybersecurity risks associated with electronic data communications, particularly as those risks pertain to its most senior leadership."
It seems likely that you and others in similar positions are under more scrutiny than those in leadership, at least that's what I get out of that report.