How do you feel about the PinePhone? There even the LTE modem runs FOSS Linux (on one of the two processors in the modem).

https://github.com/the-modem-distro

I have PinePhone. It's not really usable. Battery life is atrocious. Just overall meh. I wish I could use it.

Need? Absolutely.

How good will it be? Hopefully better than the OpenMoko Freerunner I once had - good idea, worst execution ever. Wouldn’t even work half decently as a phone, not to mention any other aspects of it…

Fair point