What is the largest house cat breed?

Could you tell me, what exactly is the largest breed of house cat that one can typically find as a pet? Are there any specific characteristics that distinguish this breed from others, such as its size, appearance, or temperament? And perhaps, if possible, could you name a few examples of this breed so that I can have a clearer understanding? I'm quite intrigued by the idea of having a larger-than-average feline companion and would love to learn more about this particular breed.