If you are working in a cloud environment (like OpenStack), some third-party providers offer pre-configured cloud images:
Instead of finding a download, you can "generate" your own image by installing Windows onto a fresh QCOW2 disk using QEMU or Proxmox. Proxmox - Windows 11 VM (with VirtIO drivers) windows 11 qcow2 download
Windows 11 is heavy. Don’t just boot it—optimize it: If you are working in a cloud environment