WhatsApp is reportedly rolling out ShareChat video support for Android and iOS beta users. All users on WhatsApp v184.108.40.206 beta for iOS and WhatsApp v220.127.116.11 beta for Android can watch ShareChat videos in-app through floating video, similar to how it works for YouTube and Facebook video links.
The support for the Share-chat video service is available installing the latest WhatsApp beta for iOS and Android. According to the WABetaInfo, this feature may not active for everyone immediately, after installing the beta version, but with in 24 hrs should receive the activation.
If you tap the play icon, WhatsApp will start to reproduce the video, the screenshots you see are from iOS, but it supports in the Android as well
WABetaInfo has digged up all these new things inside the latest WhatsApp v18.104.22.168 beta for iOS and Android. The new beta suggests that WhatsApp is working on a new Multi Wallpapers feature. This feature is under development and reportedly appear for everyone in a future update.