Kernel 5.15

[LibrePhoneUser]

Just think about this modem having proprietary software.

All cell modems on the market run embedded proprietary software; manufacturers believe they have to for regulatory compliance. But what makes PinePhone (and Librem's phone) stand out is that the modem is isolated from the rest of the system, while on your ordinary phone the modem uses shared memory with the rest of the sentence.

And also, the modem runs two operating systems, and Biktorgj’s work has already replaced one of those proprietary systems with a libre alternative.