Can the same username be used to register in multiple Orgs?

Created by Atif Ikramuddin, Modified on Wed, 7 Jan at 3:10 PM by Atif Ikramuddin

Usernames are designed to be unique across all organizations, ensuring security and clear identification.
If a username is already taken, you will be prompted about the same hence simply choose a different username when registering.
This helps maintain consistency and prevents duplication across the system.