Did Lord Vishnu bow to Ravana?

There is no mention in Hindu mythology or scriptures of Lord Vishnu bowing to Ravana. In fact, Lord Vishnu is revered as the supreme deity and is worshipped by all gods and goddesses.

In the story of the Ramayana, Lord Rama, an incarnation of Lord Vishnu, defeated Ravana, the demon king of Lanka, in a great battle. Ravana was an ardent devotee of Lord Shiva and had received a boon from him that he could not be killed by any god, demon or celestial being. However, Lord Rama was able to defeat him because he was an incarnation of Lord Vishnu and not bound by this boon.

There is no instance in the Ramayana or any other Hindu scripture where Lord Vishnu is portrayed as bowing to Ravana. Therefore, it is not a part of Hindu mythology or tradition