We don’t know, the technical briefings hinted the completeness check would be different to EE.
In EE, when a officer picks your file your application goes through a completeness check and if there’s anything missing your application gets returned to you right away, and as they move on you have to wait to get another ITA.
With this stream it’s been said in different media that there’s no completeness check and even if an officer knows your application will be rejected, they have to process it to the very end and then refuse it.