This feature was implemented via a server-side update, meaning that users do not need to download or reinstall any apps. It is presently only available for the mobile app with no news yet when we would see this feature with the Web client.
This feature was first announced by Google in May as part of a larger update. This is Google’s way of making video calls easier to navigate for its users. To get the invite link, you can create a group in the Google Duo app and the link will appear there. This link can then be shared to participants you wish to invite for the call. If the group has already been created, you can get the link by tapping on the Share icon on top. When a call is underway, clicking on the three-dot menu icon will bring up a Share option too. This feature is currently only available for Android and iOS devices, however, a report from 9to5Google says that Chromebook users will be able to use the link to launch Duo and join a call if the Android app is available. Last month, the video conferencing app received an update that allowed users register on Android tablets without phone numbers. It also announced that group video calls will be available for the Web version too. References
