7a here. Works like a charm and I was baffled by how easy it was to install.
The reason for using Pixel phones is afaik that Google is one of or the last vendors who allow a complete unlock/relock of the bootloader alongside having a workable security chip with.which most security features are implemented.
IMO its fine for vendors to abandon their products but they should be required to release all technical documentation and software used with the device into the public domain so enthusiasts can continue where companies stopped.