I've been researching what might happen with the new trade arrangements in terms of importing certain pipe-related items from overseas, in terms of delays and taxes (import duties). This message from someone in an Alibaba (... Chinese "Amazon") faily well sums up what I've been saying all along:
"While UPS used the ... tariffs to their full advantage, others are struggling. FedEx management reportedly implored the ... to pause the end of de minimis because consumers were blaming the delivery company for surprise fees. The US Postal Service simply ignored the ... , passing through packages with no effort to pursue tariff payments from consumers, because it is not set up to process tariffs, nor does it have the technology to manage the data requirements associated with commercial shipments that require customs clearance. Some observers reckon the agency will have to partner with a customs brokerage, but even that would be an awkward solution."
I won't post the source here, and have censored portions that might get this post flagged as the intent is informing about shipping logistics only, but if you wish I can message the source link to you personally.