Nintendo Switch doesn't run FreeBSD, although it does use some code from FreeBSD. The Switch OS (Horizon) is a proprietary microkernel-based system that isn't POSIX-flavored at all. I don't think the full lineage/history is publicly documented, but CFW and homebrew toolchain developers have noted strong similarities to the 3DS OS.
Nintendo Switch doesn't run FreeBSD, although it does use some code from FreeBSD. The Switch OS (Horizon) is a proprietary microkernel-based system that isn't POSIX-flavored at all. I don't think the full lineage/history is publicly documented, but CFW and homebrew toolchain developers have noted strong similarities to the 3DS OS.