Thanks for getting back to us, @moonslice2.

I'll share some insights about the QuickBooks password requirement. Yes, you can access your Intuit account outside of QuickBooks and sign in from there.

About QuickBooks Desktop 2019, you can still access and view your file even if you no longer connected to online services. 

More details about the discontinuation can be found here: QuickBooks Desktop service discontinuation policy and upgrade information.

In case you're interested to upgrade to a newer version, you can check this article for details on the process: Upgrade to newer versions of QuickBooks Desktop Pro Plus, Premier Plus, or Enterprise.

Please let me know if you have other questions or concerns concerning your file. I'll be around to help. Take care and stay safe.