Should I soak the cat food for a three-month-old kitten?
Don't soak kitten food for a three-month-old kitten. At this age, their teeth are mostly developed, and they can chew on kitten food without soaking. You can buy some puppy food or baby food, which is more suitable for kittens and can also help develop their teeth.
If you're worried about indigestion, you can soak the cat food temporarily, gradually reducing the amount of water until it's no longer necessary to soak. Cats shouldn't eat soft food long-term, as it's bad for their teeth. Slowly introduce dry food. To add some nutrition, you can give them a little bit of boiled egg yolk. Once the kitten is about six months old, you can start giving them chicken breast or similar foods. 
Kittens have delicate digestive systems and cannot digest hard foods, including uncooked kitten food. Therefore, kitten food should be soaked before feeding to kittens under three months old. However, it's important to note that hot water should be avoided, as it can lead to nutrient loss.
Once kittens reach three months old, their teeth are usually fully grown, and they can be fed kitten food. However, it's important to avoid sudden changes in food, as this can easily cause gastrointestinal upset or stress in kittens.
Because kittens have small digestive systems, it's best to choose natural kitten food that's high in vitamins and protein to prevent indigestion. While feeding kitten food, ensure their diet is bland and varied, with appropriate amounts of meat, fruits, and vegetables.
