Is AD FS required for computer certificates (not user) for Office 365 Authentication

I have a customer that has an existing AD FS architecture that is going to be using smart cards to logon to their workstations. I know that AD FS is required for smart cards when using user certificates for O365 (https://docs.microsoft.com/en-us/azure/active-directory/hybrid/choose-ad-authn#comparing-methods), but is is also required if they are just using smart cards to sign on to workstations?

Thank you