This shows if the device is "Entra Joined" and has a top-level subscription license linked to a user's identity, not a 25-character key. However, for legacy systems and volume licensing, the product key remains king.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform to find digital product IDs. Third-Party Utilities askadmin product key top
By purchasing a license (typically around $9), Alex unlocked the premium features: This shows if the device is "Entra Joined"