I would assume they have some basic stuff running 24x7. I can't imagine a network which doesn't have Endpoint Detection and Response (EDR) running 24x7 these days. There's also things like firewall logs, which are almost certainly being captured (or at least netflow). Stuff like screen recording and mouse monitoring is probably saved for extreme cases. That said, my own experience has been pretty close to:

We’re not going to look over your shoulder while you watch YouTube videos but if we notice you’re watching a lot of or you start visiting porn sites, we’re going to start monitoring you.

Quite frankly, no one's got time for that shit. I work at an organization with a bit north of 25,000 employees, and we have less than a dozen security analysts. While I could run a search against our firewall logs and see evidence of folks dicking around. I have much better things to do, like running down abnormal processes and writing up reports on users who got their systems infected while dicking around. And that's really the way it comes to our attention, most of the time. Someone is out trying to download movies or software on their work laptop (you'd think people would know better....) and they pickup malware. We get an alert and start investigating. While trying to determine the source, we pull browser history and see the user out on "SketchyMovieSite[.]xyz". And then their dicking around becomes our problem, mostly because the site had a malicious redirect, which is where the infection came from.

So ya, they may not be looking, but I'd always bet they are recording. Logging isn't useful if it isn't recording at the time of the compromise.

Mines the same way. It's actually kind of difficult to get approval to monitor someone. Has to be approved by two VPs.

Remote work and pay. I was already interested in getting a remote gig when COVID hit. We went to a hybrid schedule and I realized that I really liked working from home. Also that my job was pretty much built for it. While many of the folks I used to work with are still hybrid, fully remote was never an option. I worked with Classified systems and I could never convince them to put a SIPR drop in my home. I guess you need to get elected President for that.

As the world was opening back up, many companies saw remote work as a carrot to offer cybersecurity folks and I started to see a lot more job postings with it as an option. So, I put my LinkedIn profile to "looking for work" and started getting recruiters messaging me on a regular basis. One hit me up with "REMOTE WORK OPPORTUNITY" (yes, all in caps) as the lead for an offer. What followed that sounded interesting and I started talking with him. A few week later, I put in my notice and started working in the private sector. Got a pay bump in the move as well.

My time in the FedGov space was overall a positive thing. I learned a lot and got to see systems locked down in a way that actually mattered (I never thought I would miss STIGs). At the same time, I don't see myself ever going back. The bureaucratic nature of everything is soul crushing. And sitting in an OSS all day long sucks. It especially sucks when you're the only one in the container and need to go out and take a piss. Clear the room, arm the alarm, spin the lock, sign the sheet, go piss. Open the lock, sign the sheet, disarm the alarm, get back to wishing for the sweet, sweet embrace of death.

It's not OP, but when I left it was because the money and resources were better.

Federal purchasing is fairly rigged you don't end up with decent hardware to do anything. Projects are constantly as complicated and strenuously pushed as possible. Everything has an angle there are too many people with essentially tenure. Don't get me wrong, I liked a lot of the people that I worked with and around, but leaving Federal work for Enterprise was really refreshing.