[Fezzik]

My work Laptop is an older ThinkPad and it has a physical sliding camera cover as well as the F4 key which functions as an all purpose mute button for the microphone. The F4 key even lights up when enabled. So these options definitely exist, to some degree.

[sixbrx]

my new Lenovo X1 Extreme has both of those things. I actually didn't notice the F4 microphone toggle before, thanks for the tip!