Well it seems like every day new bits of information about the Switch are published, this time about the Switch OS. While one hacker
guessed the Switch is running FreeBSD, two other hackers known from the 3DS scene seem to
agree with each other that the Switch OS is
similar to the 3DS and
does not actually run FreeBSD. Since they can't be embedded here, I will just quote the relevant tweets:
So yea, there you have it. Keep in mind that for politically correct reasons, you have to treat these information bits as guesswork, not facts.