Навскидку, отвалятся systemd-resolved и systemd-networkd

# sys-apps/dbus: the daemon only (+ build-time lib dep for tests)
PDEPEND=">=sys-apps/dbus-1.9.8[systemd]
    >=sys-apps/hwids-20150417[udev]
    >=sys-fs/udev-init-scripts-25
    policykit? ( sys-auth/polkit )
    !vanilla? ( sys-apps/gentoo-systemd-integration )"
# ...
    # If we install these symlinks, there is no way for the sysadmin to remove them
    # permanently.
    rm -f "${ED}"/etc/systemd/system/multi-user.target.wants/systemd-networkd.service || die
    rm -f "${ED}"/etc/systemd/system/dbus-org.freedesktop.network1.service || die
    rm -f "${ED}"/etc/systemd/system/multi-user.target.wants/systemd-resolved.service || die
    rm -f "${ED}"/etc/systemd/system/dbus-org.freedesktop.resolve1.service || die
    rm -fr "${ED}"/etc/systemd/system/network-online.target.wants || die
    rm -fr "${ED}"/etc/systemd/system/sockets.target.wants || die
    rm -fr "${ED}"/etc/systemd/system/sysinit.target.wants || die

https://cgit.gentoo.org/repo/gentoo.git/tree/sys-apps/system...