This cut & paste response is exactly the reason so many customers are frustrated with Intuit, and QBO support in general.  The customer support team does not seem to be adequately trained or have the ability to trouble shoot.  This is an engineering issue.

Fidelity.com is no longer showing up as a financial institution able to be linked. It was several months ago, and now it is not.   QBO has been aware of this issue for a while, but has stonewalled users with nearly automated responses.

Fidelity has confirmed the issue likes squarely with QBO.  Fidelity.com needs to be restored so that transactions can be downloaded.   That's it, full stop.  Please escalate.