In our Keanu Reeves example, the absence of any news stories was telling. But many times when you use Google News (or other news search) you'll find something better: a fact-check on the claim.
Examples of Fact Check Websites:
Let's take a story circulating as I write this, one claiming that children in Australia are being forced to take the COVID-19 vaccine.
In this case we do the news search, and we do find something: a fact-check by Snopes:
Link: https://www.snopes.com/fact-check/australia-forced-vaccination-stadium/
Fact-checks are useful to web readers because they are designed to give a concise explanation of particular claims and because good fact checks (like good Wikipedia articles) show their work by linking to high quality sources that you can look at yourself. The ruling is helpful, but isn't what matters most: it's the explanation and all the links they've compiled for you.