@Midwest2
Read my posts on this thread. We have 2 cats, don’t use commercial cat food.
That said, chometz cat food is a bigger issue than dog food.
Humans don’t eat dog food. BUT, every few years you’ll see an article in the general newspapers about impoverished elderly people who buy canned cat food because they can’t afford human tuna, etc.
Cats don’t need to be walked on a leash with their owner following with plastic bags and a pooper scooper.