For years, the pinephone was considered an alpha device, it was targeted for only developers to use. Currently it's considered a beta device for early adopters.
So let me give you a more apt comparison. The Libre M is like a Nissan versa, ready to drive off the lot. The pinephone is like a ebike that you have to assemble, weld and program yourself.
I have both, and today you don't have to do anything complicated with Pinephone to use it. It comes with a preinstalled OS and is usable on day one. You can even change the OS by following simple instructions to prepare the microSD card (without knowing what you're doing) and then you just use the phone, too.
So let me give you a more apt comparison. The Libre M is like a Nissan versa, ready to drive off the lot. The pinephone is like a ebike that you have to assemble, weld and program yourself.