No. When you link your financial institution to an app using Plaid, we do not create a Plaid Portal account for you. You should only have a Plaid Portal account if you’ve signed up for one yourself at my.plaid.com.
You do not need any type of Plaid account in order to connect your financial accounts to an app or service using Plaid, and creating an account will not make it faster or easier to connect your financial accounts in the future.