Yeah, that is a Cornish Cross. Coloring, conformation, and the thick legs.
Genetically altered by selective breeding. The same method used to develop the chicken breeds you have, that developed the commercial egg laying breeds, the different breeds of dogs, horses, and domestic cats we have. Not developed in the lab, just by selecting which get to breed.
Think what chicken meat would cost at the store or what a dozen eggs would cost if they didn't use this method to develop these specialist chickens. How many more people would go hungry or be malnutritioned?
These chickens were developed to be butchered by 6 to 8 weeks old and provide a lot to eat. They are not meant to be pets. They may live short lives but if they are managed the way they are designed to be they don't suffer. It's people that want to use them some other way that can cause suffering.