'Left brain for logic and Right for creativity' is a Myth?

Hi,

I am using a question mark in the title, ao it ia evident that I don't know the answer. As per this video, it is a myth created in the past.

It is true that the movement of the left arms and legs are controlled by right side of brain, and movement of right aide arms and legs by the left side of brain, but creativity and logic are not distinguishable because creativity and logic go together. There is not a single task which don't need either of them.

Thanks.