After you sign in, the header opens a menu for Profile, Library, Settings and Sign out.
Profile shows your name, bio, email status and library count. Profile settings edit display name, bio, region, favourite genre and avatar colour. Account covers password reset and verification. Preferences stay on this device.
Signup is still name, email, date of birth check and password. Extra profile fields are filled after the first login. Bio and preferences are stored in this browser for your BEZ ID, not on a public profile page.