Earlier quoted context omitted.
Given the number of businesses out there doing it I would venture to guess you are wrong. Also Bitwarden and other password managers are not just about storing the passwords. For example on a personal level I use bitwarden family to manage my Parents passwords and to assist them with issue on various service, this gives me away to setup accounts and securely share passwords with them for the services, and vice versa…
Why are large businesses “sharing passwords” between users? What happens when one user leaves? Isn’t sharing a password in a business context like “Things you shouldn’t do” 101?
Because not all products businesses use have fine grain authentication and authorization. For example, their registar for their domain names. And differing employees need access to it at different times.
> Isn’t sharing a password in a business context like “Things you shouldn’t do” 101?
What do you think Bitwarden does? It's fine grain authorization over shared resources (passwords) that control who can access them. You categorize, create roles, and give those roles access to specific passwords. When an employee leaves, you rotate the password. Every access is recorded for auditing. It solves a real business problem.