We won't find the ideal solution but I think we should at least experiment if we could hint at possible follow-ups in the UI.

A follow up would be a PR mentioning the PR at hand. And we would display them as Possible follow-ups in the UI just below the list of commits. I think a simple list on a single line with #xxxx title, #yyyy title would be good enough.

There are a few pointers here: https://github.com/orgs/community/discussions/24367 .

Now we might need to be a bit more efficient that doing it per issue as we don't want to be rate limited and we might have ~100 PRs to backport for a given version.