As spotted by Esper’s Mishaal Rahman (via Twitter), there is a new Nearby Share feature coming to Android. This feature was seen in the most recent version of the Google Play Services app, though currently dormant. Nearby Share will have a new option called “Your Devices” which would list devices in your proximity that are also on the same Google Account. This would directly begin transferring a file over to a receiving device without needing to approve the transfer. Nearby Share's "self-share" mode will let you quickly share files to other devices signed into the same Google account...
Source: https://www.gsmarena.com/googles_nearby_share_expected_to_receive_a_self_share_feature-news-54013.php