I installed Web App Builder 2.15 earlier this year and am able to run it, customize apps, etc. However, I am losing my mind over how stuck I am on this seemingly simple step in this documentation for deploying said customized app. I download the app and unzip the file. But then what the heck do I actually do to deploy it on our web server? When I run WAB locally, it is an 'unsecure' browser url containing my machine name running in Chrome. I don't understand how downloading the app, deploying it to the sever, and THEN editing config files etc works. We are running ArcGIS Enterprise 10.8 with Portal and use a SAML authentication. I'm the only one that would be using WAB / developing any apps to then share out for our other org users. It also is not entirely clear to me if I do need to use a proxy or not, and if so, how to even determine what the proxy would be. The use proxy documentation did not make any sense to me.
Clearly I am not a developer and feel this must be a very stupid question!