Open a new browser window and navigate to the Sharepoint server URL and Sign In via ADFS credentials.
Steps
Login as a user and you should successfully authenticate to Sharepoint.
Verify that the URL is in a dashed format with a btglss.net domain (for example, https://sharepoint-bgstg-org.btglss.net/)
which means that your Sharepoint traffic is going through Forcepoint ONE SSE to provide visibility and data
protection.