New overlap feature in Illustrator

When I did the latest update to illustrator in October 2022, I watched a tutorial on the new feature that allow you to overlap just certain parts of shapes. Or, maybe I am saying it wrong. It allows you to bring part of a shape in front of another while another part of the same shape stays behind. Can anyone link me to a tutorial video? I learned how to do it, but quickly forgot and now i cant find the video.

Thanks!