Question about awning over slide on door side of camper

Here's a contrary thought - Part of the value we place our Awning is for the shade it provides to the side of our TT (to help manage how much heat seeps in during the day). So the type of awning arrangement you've described could still provide some benefit.

Still, I see the fivers with big curb-side slide rooms, and they typically restrict their awning to the area in front of the slide.

IMO, all curb-side slides have the potential to steal from your usable outdoor CG space.