Soak dishes? At what point it can become dangerous to health. You should never leave pans, plates and cutlery in standing water for too long.
Plates with leftover food after you have eaten meat, fish or seafood are particularly dangerous. Due to the increased water consumption, you are putting additional strain on the environment. If you have a dishwasher, you should generally not wash dishes by hand, but rather use the device. This will also save you a lot of money. Many people forget to clean it: This is how the washing machine rubber is hygienically cleaned.