[estimator7292]

ChromOS is Linux in the way that Android is linux. Technically it has a Linux kernel, but that's it. It is not a Linux desktop under your control. It's a strictly proprietary OS you have very little control of. It's not Linux in the way that literally everyone else means the word.

[gpm]

As pointed out downthread this isn't true. It is under your control. All modern chromebooks let you enable developer mode which gives you root access, at which point is is a linux desktop in the way literally everyone means the word.