“In transit” in the context of FedEx (or any other logistics company) generally means that your package is on its way to its final destination.
It has been processed and left the shipping facility or sorting center and is now moving through the network of carriers that will eventually lead to its delivery.
This status will typically be updated as the package reaches different stages in its journey, such as arriving at and departing from various distribution centers along the way.
It’s a way to indicate that your package is actively moving toward its delivery address, but it hasn’t yet reached its final destination.