Sorry not following.. I want to make it look like how it's working IPS site and how it used to work in past.
i.e. comment on right side. Currently Comment box is taking full width.
Update: I found the issue. It seems like when their is no 'featured image' - it does that. It doesn't move the category update when no featured image is available.
So for now, if anyone facing the issue, can use other option: Show latest image instead of featured one.
AlexJ's post in Gallery comments on top rather then on side. was marked as the answer