Accessing datasets in ArcGIS Pro via WFS Server Connection

Add the following to the Server URL field: https://hub.mapstand.com/gs/ows
Add your MapStand Account username and password
Untoggle Windows Credential Manager (and Connection file)
Click OK
In the Catalog pane, expand Servers and then the new WFS connection you've just created - "WFS on hub.mapstand.com.wfs". After a few moments you will then be able to see a list of all the MapStand layers you have been given access to.