Workplace conditions at Amazon (both tech and non-tech) are quite awful. There are countless reports of workplace bullying, harassment, and retaliation[1][2][3][4]. Regarding PIP/Focus, managers will make things up and falsely report status to HR. It's an incredibly toxic experience. Amazon also uses its tremendous power to do things like execute unlawful surveillance on current and former employees, and falsely accuse them of crimes[5]. Can you imagine trying to raise kids while Amazon is trying to take everything you own, without legal cause? Unreal this is allowed to happen.
Regarding "death," warehouse workers are seriously injured twice as much as workers in other warehouses[6]. Amazon received numerous citations from OSHA last year for reasons including underreporting and mis-classifying incidents involving serious injuries and illness, as well as withholding information to OSHA. It's gotten bad enough even shareholders are pushing for change[7].