Kong toy, is it helpful?

I want to ask your opinion on Kong toy. Is it really helpful? If yes, how to use it effectively?
What issues can it tackle?

Kong toys stimulate the mind of the dogs, it engages them just like a real bone, a real smoked bone can trigger chewing in dogs and it gives them a constructive way of releasing energy.

I don’t have much experience with the toy but heard positive feedback from the community.