Join Windows 11 to Domain!
For Active Directory Federation Services (AD FS) to function, each computer that functions as a federation server must be joined to a domain. Federation server proxies may be joined to a domain, but this is not a requirement. If you’re managing multiple devices on Windows 11, you’ll probably want to join it to a domain. A domain facilitates the management and security of PCs from a single server (or several servers). You can then use a single user account to log in to multiple devices and access different server resources on any PC.