Programmer Humor

It can check if people are typing or using the mouse.

It's also possible to use the camera of a notebook to track if a person is present and looking at the screen or not.

Any company using that shit is the kind that uses "bums of seats" as a measure of performance, which means they're also the kind of place were unpaid overtime is the norm and, if in dev, things like projects often ending up in a death march stage - such places are stupidly inneficient and badly managed with a disfunctional work culture.

Avoid such companies like the plague - you'll be luck if the worst that happens is insane work hours.