I ran into a similar issue in February this year… I do a lot of Mountain Bike Riding here in Victoria and order most of my specialised components from the US… One order took 2 months to arrive (usually 3 weeks). So, I contacted the supplier in the US about the delay… It was travelling as sea freight!!
The reason was the massive decline of international flights between North America and Australia which normally carry a large percentage of the expedited freight around the globe, so they had ceased processing international orders until further notice… This would be a global issue I would imagine. I know from experience that Emirates Airlines carry large volumes from Europe and South East Asia to Australia.
Shortages are already happening in Australia… Retailers especially online are sold out of many product lines… White Goods, New cars, Bicycles even certain types of Timber is starting to be hard to source.
The effect… Second hand vehicles (3-4 years old) are becoming more expensive, domestic construction is struggling due to shortages of building materials…
This pandemic has many knock-on effects… It ain’t over yet.