ok. now I get what you mean.
I do not consider these bugs.
A non existent note is always opened in edit mode. You can open in edit pane by using ctrl-click or alt-enter.
Regarding images and PDF, you are navigating using the file manager. There’s no reason why going forward the past state and not the current state should be preferred.
If you want to go back than use the shortcut or the button to go back.