Glad to see some people sticking up for each other in these times especially.
Obviously warehouse work isn't glamorous and they are under a lot of pressure and there's nothing wrong with increased scrutiny on how they are treated, but it's also getting exhausting when people act like Amazon FC workers are treated like slaves.
Where were/are you when discussing about nurses, truck drivers, waiters, mom&pop stores earning below minimum (or nothing these days), uber drivers and gazillions of other examples. Plus various the other warehouses as well. Or chinese factory workers, manufacturing your branded clothing, iphones and whatnot 6 days a week, 12 hours a day. I could go on and on for quite some time.
Everybody likes to kick Amazon these days, such an easy target, almost fashionable. Did you ever order anything from them, thus supporting the business? Ebay/aliexpress?
They are not saints, its a brutal capitalism and race to the bottom... just like every other successful company out there. Folks work there because other options they have are worse, if there are any. Don't like exploitation like that? Well try to change labor laws in your country instead of cherry-picking single target.
As for covid measures, other poster described them well enough, no point adding anything.