Good to know, that now it's available for both platforms by the same name

$ docker manifest inspect containers.intersystems.com/intersystems/iris-community:2022.3.0.606.0                                                                                                                                             
{
   "schemaVersion": 2,
   "mediaType": "application/vnd.docker.distribution.manifest.list.v2+json",
   "manifests": [
      {
         "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
         "size": 1584,
         "digest": "sha256:a9ad0e317042db836f3fb620200a0a269543a03714da475232b1a47ce8ce7839",
         "platform": {
            "architecture": "amd64",
            "os": "linux"
         }
      },
      {
         "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
         "size": 1584,
         "digest": "sha256:80ffdd649c7ad9bc7d94a97538a88b0f11e15961a2ef9ea12715dba5ba2631a6",
         "platform": {
            "architecture": "arm64",
            "os": "linux",
            "variant": "v8"
         }
      }
   ]
}

While WinSQL does not offer direct support for InterSystems products, out of the box, and as far as I know, no plugins exist. I would recommend switching to something with better support, e.g. Datagrip or DBeaver.

Or if it's required using WinSQL, you may write a plugin for it or order it (I can help with it), which will offer better support.