Microsoft only deploys monthly quality and security fixes.
If you are an OEM, you can obtain the ISO via official Microsoft OEM distributors. Installation & System Requirements Windows 11 Enterprise Ltsc Iso Download
Windows 11 Enterprise LTSC is a variant of Windows 11 that receives only security updates and critical fixes, without feature updates or changes to the user interface. This edition is designed to provide a stable and predictable environment, making it suitable for: Microsoft only deploys monthly quality and security fixes
Microsoft provides a 90-day trial version of Windows 11 Enterprise for evaluation purposes. This is the safest way to get the ISO if you are not part of a volume licensing program. Windows 11 Enterprise Ltsc Iso Download