Is this correct:
Ctrl/Cmd O Quick Switcher is a list of notes recently edited rather than notes accessed/opened. To be listed in Ctrl/Cmd O, a note has to be edited before and closed.
A lot of time I could not restore last closed pane (notes opened for viewing only) like we use to do in web browser (Ctrl/Cmd Shift T), and the Ctrl/Cmd O did not help here.