Why do people make a big deal about 4K60p cropped?

I notice there's always a lot of discussion about a camera having the ability to shoot 4K60 uncropped.

I'm wondering what benefits shooting in 4K60p actually brings? Is there a difference in image quality over 4K24 or 4K30P?

Or does 4K60 just give the benefit of being able to slow down your footage in post?

How do people use 4K60 generally? If I'm shooting sports it may make a difference, but does it make a difference if I'm just shooting interviews or pieces to camera?

Interested in hearing peoples opinions.