I once applied for a job at UPS. In the tour I saw packages flying off a conveyor belt piling up on the floor.
I doubt FedEx is any different.
FedEx lost a body here. Big news story. Yep, they even ship bodies (from morgues to funeral homes, etc).
https://www.fox5atlanta.com/news/mur...es-them-to-lab
FedEx has a lot of problems with employee turnover. They are not union like UPS.