Support for Modern Authentication (ADAL) in SharePoint 2016
ADFS / SAML Claims Authentication in SharePoint 2016 (on-prem) works great for web browsers, but barely works for Office Applications and doesn't work at all for the mobile app. Both Office and mobile work fine with ADFS / SAML in SharePoint Online.
Please add support for ADAL / 'Modern Auth' to SharePoint 2016 so we can offer the full SharePoint experience to our users!
Peter, are you aware of this SP rollup? -> https://support.microsoft.com/en-us/help/3203432/descriptionofthesecurityupdateforsharepointserver2016june13-2017
It should help a lot if you are at or beyond that rollup and then follow the direction about setting "SuppressModernAuthForOfficeClients" to true:
$sts = get-SPSecurityTokenServiceConfig
$sts.SuppressModernAuthForOfficeClients = $true