Am I the only one to think that if someone is close enough to physically yank your computer out of your hands they are also physically close enough to beat you with a wrench if you lock the computer containing what they are after?
Same. A person I know was buying physical gold about 8 years ago in preparation for a mega economic collapse which leaves gold as king. However he himself said that he will lose in the end because someone with a gun will come and take what he's got.
What percentage of the time are you dealing with thieves versus physical assailants? The lock screen seems to be for more casual users. The shred the filesystem is for hard-core users that will get beat harder if the assailant finds evidence.
That's what the self destruct is for. If you are yanked from your laptop or vice versa the laptop will crypto shred its disk and wipe RAM. Your attackers can hit you till you die but you will not be able to reverse it.
Probably most of the time but maybe not when the adversery wants to be covert.
This xkcd is exactly what came to mind when reading the "Who benefits from BusKill" section.