I've been following that Epic and the issue it is based on since 2021 (which is how I found your comment). It's been a roller-coaster which grew from small issues to a giant epic. A few times a week, I get an email about it hoping it's finally a patch for the artifact type I'm using. In the end, I manually roll up all artifacts to the parent pipeline and have a MRs ready in case the feature is released.
There are quite a few issues I follow, sometimes they are very small, sometimes they are huge epics. While I love GitLab and GitLab CI, I find myself hitting some of these frustrating issues nearly every time I do something uncommon.
They usually end up being delivered and well done, which is to the credit of the awesome folks at GitLab, but they rarely take less than a few years.