JENKINS-46657 allowing currentBuild.displayName, where the RUN column is no longer simply #1-1000, this now needs to accommodate typical build/release names, which potentially may be prefixed by target environment and/or dynamic job status.
In our system, using the MESSAGE column description as an "alternative" is inadequate, as this shows "Started by <user>/upstream job" or "Replayed #?".
So, the expectation is that RUN column shows the full currentBuild.displayName buildName, whatever width it needs to be.
Thanks for your attention to this detail.