Github currently has 966 repos with over 20k stars. The most starred repository is "freeCodeCamp/freeCodeCamp", and the most starred repo for a software project is facebook/react in 9th place.
You'll see a lot of documentation projects in this list - like the "awesome-foo" lists.
One explanation for that is that people use stars as a kind of bookmark. And they don't remove their stars, so this list also includes a fair amount of dead projects.
You will also see a lot of "flashy" projects here instead of the foundations they are built on.
If you ever see someone use "stars" as a metric for something, that's what you should consider. For most cases, it's probably not a great metric.