I want to see what the 5006th place person for Hollow Knight's run time was

You will have to be more specific. Right now the most popular category of Hollow Knight has 472 non-obsolete runs. If you want to see obsolete runs too, choose filter --> "show obsolete runs".

Oh thank you

How do I see the speedrun leaderboard?

@Mortda_Gamer don't bump old threads. To find a game use the search bar and what can't you see, that is kinda vague?