You know, I would hope so. But unfortunately with many work status situations the decisions can end up feeling rather arbitrary.

I think there is a stark difference between health and safety training/upskilling, and doing customer deliveries/support: the former is an "additional responsibility" to many positions, while the latter is a job function that the company explicitly pays another person to perform.

> If DoorDash obligates its employees to do this under the claim that it helps them perform their day jobs, then I fail to see how the visa could come into question.

If the mere claim is enough to ensure no questions about visa status, it creates an obvious giant hole to drive immigration fraud through.