Hi there and welcome.:wave:
We have a big old rescue cat who is actually terrified of all of our rabbits.
We actually had to move one of our housebuns outside as the cat got so ill with nerves (or so the vet thinks) that she has IBS and has episodes of gastritis. Since we moved him outside with his new wifeybun, she hasn't been ill once.
I think this is pretty exceptional and I am sure that you won't have to worry as most cats get on perfectly with bunnies. Caroline (Cazzap) has a wonderful cat and she is rather taken with the buns.
My friend Nathania also has two cats and they seem to get along very well with the pet bunnies, although I don't think that the wild rabbits who come into her garden are quite such good friends!!!