There’s tracking provided by both, the origin and destination postal offices, at the early stage of the package shipment, usually the origin’s statuses are more accurate, it’d read as a cryptic “The item sent from the office of exchange of origin country to the destination country” - it actually means that the package has left Lithuania and it’s on its way to the destination.
The packages sent to the same country are batched by origin’s post and get put in a container, and the entire container then gets shipped to the destination country. The other countries that participate in the delivery don’t bother going through the contents, hence no tracking updates, until the shipments are processed in the destination country’s sorting facility.
The packages may already be in the destination country’s warehouse, waiting in queue to get processed. We hear there’s long queues in some countries.