We want to use Microsoft Graph for retrieving Business to Consumer (B2C) tenant users details in our code.

GET https://graph.microsoft.com/v1.0/users 

It is giving only normal tenant users.

But we want to get all users signed up using sign up and sign in flows along with their usernames.

There is no proper documentation regarding this. Can someone with domain knowledge help us how to achieve this?

If not possible, CLI/powershell also satisfies our requirements. Please help