The article above with several pics is a lengthy analysis by a swing guru regarding Shibuno Fever's new swing.
Here's the biggest difference ... looks like Joh Rahm on the right, but needs faster body turn like him to regain lost distance. The guru says the new swing is a bias towards accuracy, not distance.
That's opposite of So Yeon's swing change in 2017. She had a high back swing, her change was a flatter back swing for more distance. Before her change she was more accurate and her misses were short and right . After her change to flatter back swing she was less accurate and her misses were long and left.