Security and peace of mind. The "full" Linux is sandboxed and more like an App than a full OS (think WSL). The ChromeOS part is already tightly locked down too.

Security and peace of mind. The "full" Linux is sandboxed and more like an App than a full OS (think WSL). The ChromeOS part is already tightly locked down too. On things like the Pixelbook you have very strong hardware and firmware guarantees that you're running what you should be or at least have a verifiable way to fix that by re-flashing/wiping.