The excellent recent video describing the R-ArcGIS bridge describes accessing remote data (e.g. a Feature Service) using the arcgisbinding library.
Specifically, the video describes how arc.portal_connect will allow you to log in to a portal using a username and password if you need to connect to a different Portal from your current active portal in ArcGIS Pro.
In my scenario, ArcGIS Pro is not installed on the same machine where R studio is. I expect to be using the manually installed ArcGISBinding library to connect to secure feature services in an ArcGIS Enterprise. Also my ArcGIS Enterprise is using a SAML-compliant identity provider (Azure AD).
Q1) Can I still use arc.portal_connect() when I don't have ArcGIS Pro installed? I assume yes.
Q2) How does arc.portal_connect() allow me to login using SAML authentication?
Thanks in advance,