I saw that in the recent update of AGOL that you can now add Point Clouds in Scene viewer but I am running into issues. I was able to publish the LAS as a web scene but when I add it to a new Scene in AGOL nothing draws. It does not give me any errors in ArcGIS Pro and AGOL so I am a bit stuck. Any help would be great!
ESRI Help: Scene layers—ArcGIS Online Help | ArcGIS