This is especially relevant when using helm charts stored in OCI registries, but the need can be extended to non-helm images as well. Today when mirroring a bunch of helm charts you will have the following in your imagesetconfig:

additionalImages:
- name: quay.io/hybridcloudpatterns/hashicorp-vault:0.1.0
- name: docker.io/gitea/gitea:1.21.11-rootless
...

A nice to have would be to be able to use a regex in the tag. So for example:

- name: quay.io/hybridcloudpatterns/hashicorp-vault:0.1.*

This way the imagesetconfig file can be kept smaller and more automated. Use case is that when you deploy an application backed by a helm chart in argo, you can specify a regex and argo is smart enough to pick the latest version matching the regex.