I was able to click and hold on the top edge of the screen that forces the login to Intuit and drag the window down. This revealed the X in the top right corner to close the screen. Cleverly hidden by Intuit. Once I clicked to close that window, I had to click cancel to end the login attempt.

Then I followed the instructions on setting up the Windows Defender Firewall to block quickbook.exe from accessing the internet. Hopefully ending this mess...