GrapheneOS@Suiseiseki The OS that's normally directly using the baseband is the one running on the main SoC. Having that extra OS is highly unusual and a massive security problem. Connecting it via USB is also a massive security problem. These things greatly reduce security. It does not make the baseband any more open. People are not running any open source software on the Pinephone's baseband through replacing an OS running on an extra CPU on the radio chip. That is not a "modem userspace" as you claim.
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