I have recently developed an Intranet using the SharePoint 2019 environment. And now I want to start the hybrid process using the SharePoint Hybrid Picker. However, I am running into a problem when I use the Hybrid Picker to enable Hybrid Search. I am getting the following error as posted in the image: Online Services Sign-in Assistant required.
When I attempt to go to the download page Microsoft provides, it appears that the download page for the Sign-in Assistant is no longer available. I can't find any more information on where to go to download this feature. Is there something I am missing here?