Cats do get hot. Cats don't have sweat glands, so their skin has poor heat dissipation. When the environment is hot, cats will breathe with their mouths open, their breathing rate will increase, and they may even suffer from heatstroke. They may also like to lie on the ground to sleep. Generally speaking, short-haired cats are more sensitive to cold than heat, while long-haired cats are generally more sensitive to heat. 
How to deal with a cat that is very hot:
1. The soles of a cat's paws are an important part of its body for heat dissipation. In summer, it is necessary to clean the fur on the soles of the pet's paws and belly, as these areas help dissipate heat.
2. As long as you keep your home well-ventilated in the summer, and use a fan or air conditioner when necessary to lower the temperature, you can help your cat cool down.
3. The hot summer weather can easily cause cats to go into shock, so it is necessary to train cats to drink more water.
