Re: No lineage?
Why bother? I'm not sure the Pixel hardware appeals to the Lineage OS crowd. Pixels main selling points are the camera software and co-processor to accelerate it, plus some extra Googley launcher. No SD card, no headphone socket. The screen is on Pixel 3 is superb*, but practically no better than the latest Samsungs - which are a more common target for alternative Android versions.
*In lab tests, the Note 9 had the best display crown, then the latest iPhone XS, now the latest Pixel. All panels made by Samsung (though Apple use their own display driver silicon)