That snippet doesn’t seem to work. I am using version 2.3.0 of BuddyPress Activity Social Share.
Line 186 of class-buddypress-share.php shows:
$this->loader->add_action( 'wp_head', $plugin_public, 'bp_share_opengraph', 999 );
Doesn’t this mean the bp_share_opengraph callback is hooked to wp_head, not bp_notifications_get_notifications_for_user ?
