Looking to Understand Parcel Logistics

Hi I am just trying to learn/understand what certain progress points mean when Tracking my Parcel. I have a parcel which "Dispatch from outward office of exchange" on October 2, 2024 (per the Japan Courier) and has since been enroute to Canada (as per the tracking on Canada Post). With it have been so long already I am not sure whether the parcel has been "lost at sea" or just not scanned yet.

Would someone be able to educate me on how parcel logistics works so I can make heads and tails out of the status? Also in a case like this, if I wish to escalate/learn more about where my parcel is at, who should I go to? Canada Post or Japan Post?

Thanks in advance!