digital nomad sorta implies remote, non-office work, I fail to understand how KVM is helping simulate work as you imply? It just makes switching computers easier, nothing more. You can switch manually or you can just use separate work and personal machines as well.

I'll explain. You can use a KVM like PiKVM to remotely log in from another location. For example if your employer requires that you work within the US, you can have a PiKVM device installed locally at a family or friend's home in the country and connect to it from outside the US and it would appear as if you're doing your work domestically.

It's basically a hardware remote-desktop at that point though, so the "KVM" part only applies to the KVM device being connected to another physical device on location.

EDIT: To clarify further, the advantage of this is PiKVM is undetectable by work laptops. Nothing is installed on the work laptop, it's strictly HDMI + USB cables going to the KVM. I know this because I use one for my FAANG job.

What does remote work have to do with "evading detection" via KVM? This makes zero sense.

How do they do that? Is it the case that their boss walks by them and can see what's on their screen so they're switching away from minesweeper?

detection of what exactly?