Hi @hank,
My apologies for confusing your setup with the Classic Universal Login.
I understand now that you are using the New Universal Login.
Yes, what you have found from that FAQ is correct. The result_url will only work for the Classic Universal Login. When using the New Universal Login, you will need to configure your default login routes.
These URI settings can be found on the Dashboard in Applications Settings, the Tenant Advanced Settings, or with the Management API.
Please see our Configure Default Login Routes documentation which goes into greater detail on these instructions.
Is there anything else I can do to help?
Thanks,
Rueben