[mioelnir]

I can't recall where I read it, but it said that the Switch likely uses the FreeBSD networking stack running in userland. To me, this makes some sense, since if I remember correctly the 4G/5G/some-future-wireless-thing alliance uses a userland version of the FreeBSD network stack in their reference implementation.

[boomboomsubban]

From what I've seen, it originated here,and it's only speculation. It does seem likely though.