For example you should be able to use https://en.wikipedia.org/w/index.php?search=linksto%3Am%3A to search all pages links to Meta-Wiki main page.
One use case is T249688#6055456, though T239628: Provide overview of uses of a Wikidata item in Structured Data on Commons will be a more proper solution for that.
Closing out low/est priority tasks over 6 months old with no activity within last 6 months in order to clean out the backlog of tickets we will not be addressing in the near term. Please feel free to reopen if you think a ticket is important, but bare in mind that given current priorities and resourcing, it is unlikely for the Search team to pick up these tasks for the indefinite future. We hope that the requested changes have either been addressed by or made irrelevant by work the team has done or is doing -- e.g. upgrading Elasticsearch to a newer version will solve various ES-related problems -- or will be subsumed by future work in a more generalized way.
Re-opening tasks and removing from team workboard per IRC feedback given yesterday and discussion with MPham.