If the PowerShell command fails or the Settings app cannot find the feature, it is often because the system is configured to use Windows Update for feature installation. You can fix this via Group Policy:
Don’t search for “Active Directory download.” Search for “RSAT Windows 11” or use Windows Server in a VM for real AD testing.
This guide explains how to install and access the , which include the essential "Active Directory Users and Computers" (ADUC) console on your Windows 11 machine. Prerequisites for Installation
You as a standalone app for Windows 11. Active Directory (AD) is a server role , not a client software.