Does the USA simply have no food safety standard at all? - eviltoast

At McDonald’s, I saw that their sweet tea comes from a plastic bag inside a metal container, which stays in there all day. That doesn’t seem sanitary. Then I found out some places, like Olive Garden, heat soup in plastic bags by putting them in hot water. Isn’t this like leaving a water bottle in a hot car, where plastic leaches into the liquid? How is this okay? Like, I feel like that would be so explicitly illegal in other countries. Taking a big plastic bag of soup and just throwing it in water for the plastic to obviously separate from the bag and be intermingled with the food…

It sounds a lot like poison, like it’s literally poisonous. Like how is this okay in the USA?