So android 10 beta on s9/note 9 has updated the iris scanner to support the biometrics api and can be used for apps that were updated (aka apps that work on pixel
Samsung Galaxy S8 iris scanner fooled by German hackers | Biometrics | The Guardian
Samsung Galaxy S9 to feature an iris scanner with improved hardware and software for safer financial transactions- Technology News, Firstpost
Samsung Galaxy S9 said to get upgraded Iris Scanner and Facial Recognition tech
Galaxy S9 iris scanner to rival Apple's Face ID | TechnoBuffalo
Intelligent Scan vs Face ID - Galaxy S9 vs iPhone X - YouTube
Samsung Galaxy S9 Tips - How to Setup the Iris Scanner - YouTube
The Galaxy S8's iris scanner fixes the one thing that made it suck on the Note 7 | Mashable
Galaxy S9/S9+: What's the basic principle of iris scanning? | Samsung Saudi Arabia