Lost ability to preview notes in Notes app, have to double click to open

Hey guys,

Something's up with my Notes app. I used to be able to click on a note and view a preview in another panel to the right, however it's completely disappeared and I have no way or understanding of how to get it back.

Halp!

MacBook Pro 16-inch, 2021 Apple M1 Max 32 GB 15.1 (24B83)