🇩🇪 Marxist, Free (as in freedom) Software Advocate and a loyal player of Yu-Gi-Oh TCG
Killswitches give a false sense of security because it is still possible to extract some form of audio through other sensors. Another problem is that the firmware of the Wi-Fi/4G modem does not receive periodic update to prevent attacks. Pinephone won’t be of any use, I’ve been in the same situation as you and preferred to opt for the Pixel with GrapheneOS.
My approach to use internet nowadays (joke)
Mullvad is from Sweden