IMO, ChromeOS shares way too much information with Google by default. (And saying that this is okay because you can turn it off is complete bullshit. It is evil for Google to set a sharing default to favor themselves over the user).

Even worse, the last time I used a Chromebook two years ago, I couldn't even create a local user account without Google's consent. On a machine I supposedly owned.

I like ChromeOS itself, but as configured, it is a user hostile operating system.