The way I've implemented this is that the yubikey is on an extensible lanyard which is almost always around my neck. So while an evil actor could definitely unplug it to ruin my day, stealing it would be a tad bit more difficult :)
In any case, the primary idea here was not to prevent stealing the laptop, but to prevent walking away from the laptop without locking it.
In any case, the primary idea here was not to prevent stealing the laptop, but to prevent walking away from the laptop without locking it.