Actors have to do several takes and if they eat in the shot, they have to eat in every shot. A lot of young actors who don’t know often learn this very early in their career to never eat the food because they will forever be sick of it.
I think it was Zach Braff that mostly chose to have soup on the Scrubs set for this reason! And if I remember correctly Donald Faison never learned that lesson 😅
On the Warthunder forums there are regular leaks of military secrets, like fighter jet schematics, specs and such just to win arguments. People are fucking stupid.