This is not talking so much about the Docker GUI things but rather this doesn't require a Docker daemon at all.
Similar tools are Google's Jib for JVM based applications, `rules_docker` and `rules_oci` for Bazel etc.
All of which allow you to build applications without needing a Docker runtime at all during the build process which is a huge plus for portability, performance and repeatability.
From my experience, podman desktop is pretty good at containers, but horrible for Kubernetes (it uses KIND but you can't configure basic things, like exposing NodePort IIRC).
Given that SUSE uses Podman, I hope they'll modify Rancher Desktop to use Podman, in which case it'd supersede Podman Desktop.
Similar tools are Google's Jib for JVM based applications, `rules_docker` and `rules_oci` for Bazel etc.
All of which allow you to build applications without needing a Docker runtime at all during the build process which is a huge plus for portability, performance and repeatability.