Preferredusername
Preferredusername is a term used to describe a chosen identifier that a user wishes to be recognized by within a specific online system or platform. This identifier is distinct from a user's real name or account login credentials, serving as a public or semi-public display name.
The purpose of a preferredusername is to provide users with a consistent and often more personal way
The availability of a desired preferredusername is often subject to uniqueness constraints, meaning that once a