what do you think of the PinePhone?

I heard of a privacy-promoting phone called the PinePhone, and immediately went to properly read up on it. https://en.wikipedia.org/wiki/PinePhone . Wow, a Linux-running (not merely open-source) phone. Runs Manjaro, and can be set up for other distros.

What I haven't figured out yet is whether one of these phones would be probably be accepted by major phone service providers. Anyone here who uses a PinePhone with Verizon, T-Mobile, etc.?