[user5994461]

The workloads vary by time and domain. Amazon has huge volume, huge peaks, and everything is an individual item. The work environment has to be crazy to keep up to the goal.

I think the closest I have seen is the office supply chain. When you buy a notebook in a shop like office depot, there is a warehouse upstream that can the same order, it will package the notebook and deliver it the next day to the shop to refill. It's similar to Amazon in that they deliver small items of minimal value, one by one.

Bulk warehouses and specialized products should have better conditions because they can have higher margin and/or less units of volume to manage.