Google is testing new features for Android Chrome, or Custom Share Sheet. Flag is currently available to enable this feature through Flag in the latest version of the Chrome Canary channel, providing QR Code QR code scanning, sending current tabs to your/other devices, copying links and more.
To enable this feature, you need the following steps
1. Make sure to use Chrome Canary 81.0.4005.0 and later
2. Visit chrome:flagspage
3. Search for “Hub”, find the Flag of “Chrome Sharing Hub” and then select Enable and restart your browser