After upgrading systemd to version 242 or higher on Gentoo you may encounter that you do not have a console on tty1 anymore.
To fix this you need to issue the following commands:
# systemctl enable email@example.com # systemctl enable remote-fs.target
This is not needed for new installs after 2019-08-12 since there was a fix for new installs. However upgrading old existing installs is still affected.
Gentoo bug #691854.