I've worked for multiple departments and can tell you that it's wildly inconsistent in terms of how a new employee or somebody who's getting a new device is trained and given the ability to consent to what they're consenting to.
Yes, it is a shared responsibility, of course, but in some cases, it has felt more like the terms and conditions of a new iPhone when I'm being told about the various rights and responsibilities I have with a government device. Training might be something that's necessary, but again, I don't think that's exactly what we're talking about here.