Millions of us ate our lunches like that, and to my knowledge very few got sick because of it. So maybe it’s not as bad as you think.
I know. We used to have tuna sandwiches, egg sandwiches, meatloaf, etc etc etc that sat 1/2 a day or even longer (if we ate it after school Instead) in hot weather too.
We used to eat raw scrambled hamburger right out of the frying pan too as we couldn’t wait for it to be done lol.