A drive thru employee works a scheduled shift and when it's over they're done.

I don't see how that example works with this topic of overtime/overwork.

Every foodservice place I ever worked in my youth got quite irate when someone worked more than 40 hours, because overtime is a lot more expensive than just hiring another worker.

Most drive thru chains are using stopclocks to time how fast they get your food to you, from speaker to pull off..and it's not a reasonable metric.

Some fast-food employees even get benefits.

But like, if you were more passionate about your job, it would be more rewarding! Maybe not monetarily; but think of all the interesting people you get to talk to as an Uber driver!