Is this library the way to go when I have the following needs? 1. Login to SaaS via website and later use an access token to authorize against a graphql api? 2.

Is this library the way to go when I have the following needs? 1. Login to SaaS via website and later use an access token to authorize against a graphql api? 2. Login programmatically so an access token can be retrieved and used for REST queries. 3. Does (2) work if the client is a pure oauth2 client (not an oidc client)? 4. Is the library recommended in a tenant based SaaS (like MS Azure)?