(This kind of comment always elicits current Amazon engineers who disagree because they haven't personally experienced this. To them, I say: Stay at Amazon long enough and it /will/ happen to you. To those currently in the grinder: I hit the eject button at L6 and found a much better gig; it gets better!)
When the 90th percentile employee has a GED and works warehouse or delivery, actions to earn “best employer” may be invisible or worse to the 5% who are software people. I’ve worked at Meta too, and Meta absolutely had better coffee. And WAY better health insurance. But Amazon’s health insurance is uniform for all staff, and that means something.
I worked a short contract there and I've seen the 'meatgrinder' bit. I joked (not really joking) with my fellow contractors that maybe the reason they walk four abreast is shell-shock, not arrogance. A couple days a week we went to lunch in a daze.
It's clear there's not enough quality control in their 'culture', by almost an order of magnitude. I've known two different people who quit after less than 2 weeks. One after being called on Sunday asking why he wasn't at work. On his second fucking week at the company.