Feature to check if the account is organizational or not
Without the user's login, we can't distinguish whether the account belongs to an organization or Microsoft account.
I think this specification is due to the possible case of the same account name between organizational and Microsoft accounts.
Some IT Pro members in an organization get confused because they can't judge if accounts of their domain are already registered as a Microsoft account or not.
They must search a specific account into all of their own Azure AD.
Also, some command-line tools cannot be used as a Microsoft account user.
(For example, Add-AzureAccount command with a credential string cannot be used as a Microsoft account user.)
So the member of an organization may forget that they have already registered their account as a Microsoft account, and as a result, they can't execute the tools.
If we have a ease way to validate whether the account is organizational or not, such as only by typing its account name, it's highly useful for both IT Pro and users fond of using command-line tools.
A duplicate account name between Microsoft account and organizational account makes users confused.