Your username is your profile's address, so it has to exist before the profile does. Set or change it from Settings, which shows your current username and checks a new one is free before saving.

This is your account username across Manaflo. It is not the same as the per-game username you choose when joining someone's game.

The header carries your avatar, your display name, the total likes your published work has earned, and the date you joined.

Below it are the same tabs the Vault uses, Characters, Spells, Items and Shops, each showing only your published entries, with the same singles and groups split.

My Profile in the account menu opens your profile exactly as anyone else sees it. That is the quickest way to check what is actually public before sharing the link.

If something you expected is missing, it is almost always still a draft, so publish it from your Library.

Filtering the Vault by Creator shows one person's published work, which is the same view their profile gives. Following a creator's profile link is just the shortcut.