The management at Intel itself are also highly paranoid. They have been using "bossware" for over a decade before COVID. It's just known as a paranoid company.
Although, probably a lot of large corps aren't too different.
I experienced this 20 years ago when working on a collaborative project with engineers at Intel. They searched me on leaving the building every day. And this was just an office building, not a final assembly plant where it might be reasonable to want to look for theft of production units. It was like exiting Fry's. I made a mental note then never to work for Intel.
Does this really happen, or would it ever? Seems like a contrived scenario for employees to have enough access and knowledge to detect and defeat a userspace or kernel-resident solution that doesn’t want to be found. Plus, if you’re going that far, you’d want to make sure it wasn’t easily detectable by analyzing network traffic.
I’m sure such a thing is out there, but I doubt it’s being used by employers to spy on workers. More like governments spying on workers with access to sensitive IP.