My Pixel 8 failed with the exact failure mode (supposedly) covered by that extended warranty [0] program after owning it for 18 months. I had a very frustrating back and forth with Google support and in the end they refused to fix it under warranty because it wasn't manufactured in a specific batch.

Flagship phone turned into a useless device after 18 months of ownership due to a manufacturing issue and I've got no recourse. I'm done with Pixel and Google in general.

[0] https://support.google.com/pixelphone/answer/15009955?hl=en