For them food is absolutely ignored if there’s a possibility of something to do. Food in a bowl and a ball nearby? Food is secondary to ball. We used to worry about our border collie and have to constantly make effort to lock him in a room with food so he’d eat and not just allow the other dogs to take the food.
Cats can be similarly ‘fussy’ as well. I have two indoor cats, a Garfield (can’t leave food out near him or he’ll eat to the point of throwing up) and one thats play obsessed and not at all interested in food except as needed at the most minimal levels. Makes it hard to feed them since one needs food left out to graze and the other has to be controlled.