With Fed Ex, UPS, et al, third-party private carriers in general, you forfeit any protection of the 4th Amendment where searches are concerned. I ship nothing controversial with private carriers for that reason.I always use USPS (priority mail or first class when purchasing items online) I’ve only had one item go missing in my lifetime (eBay seller shipped media rate only, refused my offer to pay for priority mail)
My experience has been the USPS delivers far more consistent and reliable service period.
FedEx is pretty decent IMHO
BTW none of my beans has ever disappeared or got “lost”