Hi,
Whilst testing this I noticed a few things:
1. Outlook does not sign out when switching user, I am guessing that is because Outlook does not participate with SSO in this mode. Any ideas as to when that will happen?
2. When I leave a session, the interface can be buggy. For example Chrome will appear with a Sign-out page, which if not closed will remain open in the background and open up multiple tabs each time someone signs out. Sometimes it also goes back to the home screen of the session you've just signed out of and after a few seconds will then go back to the initial Managed Home Screen sign-in page.
3. The signing in page, sometimes once I've entered in my Azure credentials and it comes up with the set pin page, it will jump back to my company's sign in page. Pressing the back button will take me back but thought you should be aware.