It would be nice if systemd-homed were able to be managed by the settings GUI, create users, change password, change profile picture, etc.
Some related posts:
This sounds like something that needs to exist in GNOME before anyone can utilise it through the GNOME GUI.
The manual method seems easy enough to follow;
Until all things in this world that would be nice become nicer, at least basic User management is available via;
- Manjaro Settings Manager (MSM) → Users
- GNOME Settings → Users
Regards.