If you're curious, a book The Master and His Emissary by Ian McGilchrist goes over many of the differences in "personality" of each hemisphere which is not as simple of a divide as is commonly heard. It is not so much a logic vs. feeling/art split but maybe more of an isolation/abstraction vs. broad/networked default mode for each.

The gibberish was dubunked, correct.

The neuroscience, which is nuanced and complex, continues to prove valid. Our two hemispheres process the world differently.