Hello, yes sadly this is a limitation from the YouTube player, it does not allow going back to a previous video, only to the start of the current one.

However the extension is able to go back to the previous track in the current video, assuming that a tracklist has been extracted from the video description or comments.

Hello, thank you for your review! Unfortunately no it wouldn't be possible as far as I know, extensions are fairly limited in terms of behaviours.
However, I just uploaded an update of the extension allowing you to enable browser notifications to be displayed on each track change. Thought this could help you get the information you need!