Luckily not everyone agrees with Richard Stallman's hard-line take on proprietary chips.

IMO, if the radio chip just acts as a radio, and passes packets as requested, and any needed firmware blobs are freely distributable, it's fine. It's not ideal, but it's good enough to make a libre-phone.

We all know the network is spying on us anyway, and the radio should be treated as being part of the network, on the other side of the security boundary from the main processor - and since we don't trust it, we don't have to demand that it helps us verify our trust in it!