would it be illegal to download Ubuntu on a Chromebook?

what if I, for example, had a job in Google and I liked Linux so much I install Ubuntu on my Chromebook, would that be illegal/send me to prison?? Or, if I had the job, would I be kicked?? I like Chromebooks because they are so smol and nice. But I don’t know if it’s legal to install a Linux distro on it. Thank you!!