When I mentioned the anglophone culture of departments, I was referring to the situation here in Ottawa, in the National Capital Region.
Furthermore, anglophones are under-represented across federal departments in Quebec. When you examine the challenges faced by anglophone public servants working in federal departments in Quebec, you see the exact same problem that francophone public servants here in Ottawa face, just flipped around. Anglophones in Quebec are reluctant to speak in English during work meetings because it's the minority language. They want to use the language of work chosen by the group. They are reluctant to use English when writing reports.
Personally, my observation has been that anglophones are under-represented in federal institutions in Quebec. It's more or less the mirror image of what we see here, in Ottawa.