Both comments are exaggerated. *BSD is used in some Japanese embedded devices like router or PlayStation, but generally Linux is far more popular. Embedded engineers aren't actively publish information like web/app engineers, so there are less information for BSD usage on internet. Still Linux is far more popular in general.

>Still Linux is far more popular in general.

I pretty much had the opposite experience.

For example, let's see how much articles posted for them. Though newbies tend to use Linux and matured BSD devs tend to not post on Qiita, still it's over x20 difference.

https://qiita.com/tags/linux https://qiita.com/tags/freebsd https://qiita.com/tags/netbsd

Maybe i talked just with really old "matured" dev's like my self..

there's japanese ISP's that use NetBSD in their hardware correct?

Yes i heard something too.

And Apple used it for their Apple AirPort:

https://www.netbsd.org/gallery/products.html