The table below shows a home/away wRC+ split for the Yankees from 2019-2020.
There is usually not this much of a difference in home/away wRC+ splits, because it is adjusted to the park factor. Such a big difference means that there is something else. We can call it the “Short Porch Advantage.”
The Yankees have a lot of right-handed power hitter, so when teams try to avoid home runs when they face them at the Yankee Stadium they usually have pitchers throw the ball outside. It’s conventional wisdom.
However, Yankees hitters are good at making long balls into home runs by hitting the outside ball to the “Short Porch” behind the RF.