When listening to the "MS-DOS 6.22 - Best OS... ever?" podcast, I realised that @lunduke actually sounds a lot like Agent Smith.
At about 2:37 minutes in, when he says "... but you could live in Windows and never leave it...", I automatically appended "... Mr Anderson" to that sentence :-)
These are hardware kill switches.
Not a webcam cover. Not software disabled Wi-Fi. Kill switch.
Laptops should have these.
The Librem 5 smartphone -- running GNU/Linux -- is "confirmed for Q3 product shipping."
I now have 6 web browsers...
on my phone.