I’m experiencing a small bug: the F11 key is supposed to toggle the notes list, but instead it’s switching to fullscreen mode. I’d like to report this issue.
Appears to be a duplicate of this post from last week.
Apparently F11 will show/hide the note list but you have to be in the editor, otherwise it toggles full-screen. The keys to show/hide the side bar or the note list can be changed.