https://ar5iv.labs.arxiv.org/html/1711.10958

https://www.xda-developers.com/google-pixel-now-playing-feature-ported/

cross reference: https://play.google.com/store/apps/details?id=com.google.intelligence.sense&hl=en_US&gl=US

No, but you can say they don’t count because they were made by other manufacturers. They were Google-branded and had some Google-specific features (or, at least, lack of bloatware). But they weren’t Google’s handsets.