I work in an enterprise that relies almost exclusively on certificates (PKI) for service access. Currently ArcGIS Pro only supports simple username/password, or unauthenticated WFS connections (and I'm not sure Earth supports WFS at all). I need ArcGIS Pro (and ArcGIS Earth) to support fetching a user's digital signing certs from the Windows certificate store, and pass that for authentication to https protected WFS endpoints. This would also ensure a common capability across OGC web service handling for ArcGIS Pro, since client certificate handling is already nicely implemented in Portal connections and ArcGIS REST services. Thanks for considering!