>If you care about it, consider GNU/Linux phones, Librem 5 and Pinephone, which run FLOSS and have hardware kill switches for microphone and other things.

Last time I checked in with the Librem project, the phone was completely unusable as a phone because the power management and in particular the sleep mode wasn't working properly. Sometimes the phone would wake up from sleep, and since the power management was buggy it would blow through the entire battery charge in an hour.

So essentially you'd need a backup phone for your Librem 5 because you never know if it'll be dead when you need to call 911.