https://techcrunch.com/2022/09/08/twitter-is-testing-a-share-to-whatsapp-button-in-india/

Twitter is testing a new way to share tweets in India, by adding a WhatsApp button under the posts for Android users. People will be able to share tweets with their contacts and groups on WhatsApp directly by tapping on the new button.

The WhatsApp share button will replace the regular share button under the tweet, which opens up different options like bookmarking, sending via Direct Message, copy link to Tweet, and sharing to other social media platforms.