You need to install with a regular user, and create a new user through the homectl command.
Since systemd-homed is a daemon, not 100% perfected yet, I suggest you keep the install-time user under a different name like admin or whatever.
man homectl will show you all the required options, although a bit verbose still readable (Not like the archwiki or whatever).
There is one minor caveat; You need to run the following commands before you login:
USERNAM=username # Replace "username" with your actual username
sudo homectl with "${USERNAM}" -- restorecon -vFR "/home/${USERNAM}"