Why is Lord Balaji not considered Lord Vishnu's avatar?

Why is Lord Balaji not considered Lord Vishnu's avatar? Lord Balaji is not considered an avatar of Lord Vishnu, but he is known as Venkateshwara, Govinda, or Tirupati Timmappa. It is believed that Lord Vishnu took the avatar of Venkateshwara Swamy to save people from the sufferings of Kaliyuga. Some more things about the avatar of Lord Vishnu: The reason for Lord Vishnu's avatar is that he is the protector of the universe. The reason for Lord Vishnu's avatar is that one has to take an avatar according to the situation. Matsya avatar is considered to be the first avatar among the major avatars of Lord Vishnu. Ram avatar is also included in the avatars of Lord Vishnu. Narasimha avatar is also included in the avatars of Lord Vishnu.