Anyone else having to deal with their customers complaining about their order taking too long due to usps?!?

A bunch of orders that are mailed Priority Mail are taking longer and longer, all domestic btw. Some are stuck in a black hole somewhere and local post office doesnt even know where those packages are. One of the packages finally arrived 20 business days later. Post office say it's due to Covid19 but we all know it's more than just that….anybody else dealing with this too? How do you respond to your customers?