Answer
Hold the Shift key while launching the application — this opens an additional dialog where you explicitly select 'Use Single Sign-on,' which bypasses the standard Microsoft account-picker prompt and logs the user straight in via SSO instead.
Hold the Shift key while launching the application — this opens an additional dialog where you explicitly select 'Use Single Sign-on,' which bypasses the standard Microsoft account-picker prompt and logs the user straight in via SSO instead.