I ship stuff all over the world and it has been odd to say the least. Starting in late March there were 4 months or so of parcels being at a standstill. Due to a lack of flights USPS was diverting things to sea transport, then when it finally arrived at the destination country it might take many weeks to be delivered.
The past 6-8 weeks things been going about normal, a first class mail package sent to Germany a few weeks ago only took 1 week to arrive. A similar package to Australia took close to 6 weeks, some of that was it moving at a glacially slow pace within the USA, it went to the USA to Hing Kong to Oz in just a few days, and then took weeks to travel through Australia.
I have had the same issue with a shipment sent to Canada via UPS. It sat in a depot for a few weeks while UPS denied they had it, then they said it was locked up for security reasons, just excuses I think.
The worst part I think for both parties is just not being able to get any meaningful updates.