There is occasional talk of moving the Windows implementation of OpenZFS (https://github.com/openzfsonwindows/openzfs/releases https://github.com/openzfsonwindo

There is occasional talk of moving the Windows implementation of OpenZFS (https://github.com/openzfsonwindows/openzfs/releases https://github.com/openzfsonwindows/openzfs/releases) into an officially supported tier, though that will probably come after the MacOS version (https://github.com/openzfsonosx https://github.com/openzfsonosx) is officially supported.