Will this affect my feng shui?

Hello! No, the little white dog in front of the door is a good thing. Bad things happen not because of dogs, but because of bad luck in geomantic numerology. You can often play with the little white dog and feed it some food. It is best to bring it into the house often to play instead of hitting it. In fact, when the dog often squats in front of the door, it has told you to be kind to it and remind you of misfortune. Have a try, hope to take care!