In the upstream UDI, the UDI uses UDI-base as its base image as shown here: 
[1].

However, in the downstream UDI, the downstream UDI-base image is not being used as the base image, see [2].

This issue tracks the completion of updating the downstream dockerfile such that the downstream base image is being used.

[1]https://github.com/devfile/developer-images/blob/e05d895bccbf9b1fe01a9bb8850d8c23dbddcb00/universal/ubi9/Dockerfile#L4
[2]https://catalog.redhat.com/en/software/containers/devspaces/udi-rhel9/673f8460bbf0c33aca0fe316#containerfile