Its unlikely that any of these distros including LFS systematically fix the sort of privacy issues that exist in open source software. For example, loading most HTML documentation in distros is a privacy issue because they often load resources from the internet.
Linux from scratch doesn't ;)
KISS, Gentoo, Alpine(not sure if it's desktop-usable?) are probably the most private.
Its unlikely that any of these distros including LFS systematically fix the sort of privacy issues that exist in open source software. For example, loading most HTML documentation in distros is a privacy issue because they often load resources from the internet.