The Nexus 6P and the first-gen Google Pixel were subjects of class-action lawsuits over bootloop issues and faulty microphones respectively. Months after the cases were decided in court, the settements for both lawsuits are now being sent out. The Nexus 6P's tops out at US$400, while the Pixel has a US$500 maximum payout.
https://www.notebookcheck.net/The-Nexus-6P-and-first-gen-Google-Pixel-settlements-are-now-being-paid-out.454698.0.html