@a1ba @foxhkron @SuperDicq @hj glibc and coreutils are only 2 GNU packages.

There are far more GNU packages than that; https://www.gnu.org/software/

Modern distros need gcc, binutils, bash, ncurses, gimp, parted, units, grub, gzip, tar, sed, awk, grep, wget, gsl, gettext, gdbm, groff, make, texinfo, unifont, libidn, libiconv, less, autotools, gnupg, libgcrypt, gnuTLS, GNU r, gimp, octaive, gmp and most of the rest of the GNU packages.

Despite all the efforts to bloat up Linux, GNU is still larger than Linux - thus if you want to go by contribution by percentage - Linux is out.