How can we integrate Qualtrics login flow in our platform ?

Hi, Respective Qualtrics team,
We are stuck at the point where we need to use Qualtrics as an Oauth2 to our platform. So basically the following required thing we want to perform.
We want to develop the application in that we will provide Qualtrics login flow and get the all survey list that they have built-in past in drop-down. The user will select any survey after that will pull all the responses of that particular survey and display a graph view according to the response question type.
But unfortunately, I read the whole document as based on research there are two ways to obtain the Qualtrics account token as mentioned in the document below. So firstly, we can manually go through the account setting → Qualtrics IDs → User details and get the permanent token. In a second way, we have to create the Auth user with the necessary scopes, and by that client ID and secrete ID we can call certain APIs and get the temporary token. This is for our account, but we required tokens of other users that log in with Qualtrics in our platform.
Is this possible? And any way to achieve or any kind of help would be a great help of us.

Thanks