everybody else is talking about home cooking, and that it's not recommended to wash chicken from a supermarket at home. probably in whatever context you have these multiple compartments recommendations are different

I'll call bullshit on that unless you're using the wrong words to describe these rooms. I know the field from a cook perspective and no kindergarten has multiple rooms for cooking and meal prep. You're thinking about the setup in a factory that does food transformation. Transformation and preparation are two completely different things.