They can come in almost any color, depending on which cat registry association you are looking at, and have a flat face when compared to most other breeds of cats. (thesprucepets.com)
But I'm not aware of this issue in other breeds of cat, and I'm not aware of it in dogs, period. (newscientist.com)
They also readily accept other breeds of cats, dogs and of course children! (catsofaustralia.com)