Juniper gear runs JunOS that's almost pure FreeBSD, with added device drivers for their hardware and a CLI layer on top.

The next version of JunOS, JunOS evolved, is moving to Linux though.

Like every Android or embedded linux?

Linux is only a kernel, unlike FreeBSD which is a whole OS.

I was talking about Gnu/Linux and you know it.

And hint, that's why the playstation etc has "just" parts of FreeBSD....they don't need tar and llvm in it.

Your comment makes no sense in that regard.