I was watching YT videos to see how other people approached the Level 3 practices questions, and saw they used a pre-made workflow from the Framework folder (in RE-Framework) called GettAppCredentials.xaml. But I do not have this in my installed version: 2019.10.04.
To anyone else with my original issue, to correctly obtain/install the GetAppCredentials.xaml workflow you must Download and save the entire folder from Git to zip, then extract the desired workflow once it is saved on your PC
If you try to save the specific workflow directly from Git (to copy to your local REF folder) you might be served the below error:
For security reasons DTD is prohibited in this XML document. To enable DTD processing set the DtdProcessing property on XmlReaderSettings to Parse and pass the settings into XmlReader.Create method. Row: 0, Column: 0