Hello,
Currently when field validation has ‘Required’ checked a red asterisk appears next to the field as you would expect, however when the field validation has ‘Required when publishing’ checked there is no visual indication that it is needed before you can get the content published; you just get told when you try to publish.
I am not quite sure what I would expect it to look like! Perhaps an amber asterisk that on hover shows ‘Required on publishing’, however that doesn’t seem very accessible.