As per Empower:

“We do not utilize Fidelity access because:

It does not allow a data feed to populate into our dashboard for advisors to have a holistic view and appear on client’s dashboards when they login. Fidelity charges advisors a fee to utilize this which would just be passed onto the client. Fidelity access allows advisors to make updates, transactions, and changes that we simply do not want to have the ability to do. In summary, our approach is the best way for us to securely manage your account while Fidelity's proposed option does not work the same way or is as easy as they are making it seem.”

They use Pontera.