It would be nice to ungraft glibc soon, in my opinion.

Grafting the entire distribution causes some user experience issues that
many of us are used to, but that are not really that great, especially
for new users.

The issue is build farm capacity.

I wonder how long it takes to rebuild everything for Intel-compatible
systems on berlin.guixsd.org?

Maybe fast enough that rebuilding the world for this change would not
disrupt Guix development too much... except that rebuilding the world
for armhf would take a very long time, during which we could not be
building the other regular changes for armhf.

Ideas and discussion welcome!