I have walked 1000km while playing that Harry Potter Wizards Unite game.
(That milestone doesn't capture the fun of the game, but it's something that folks can understand even if they don't know the game's rules. Like… if all you care about is how far you've walked, just use an app that keeps track of your "steps". Harry Potter Wizards Unite does something that those apps don't do: occasionally, it shows you a cute animation of a baby hippogriff flapping about. I don't know how to get my phone to screenshot that baby hippogriff animation for you, so instead you just get to see this screen with a 1000KM at the bottom.)