I was watching this earlier and got about halfway through before the power went out. I spent the next 90 minutes before it came back on trying to imagine a style of these that would look good on the south side of my house.
I didn't come up with anything that my wife would let me install so I guess I'm going to stick with my plan of automated shades or drapes.
I just got awnings installed two months ago on the windows that get sun for most of the day. It dropped the temps in those rooms by almost 8 degrees Celsius on hot days. The AC even runs less during the day now.
They're simple retractable awnings that a local guy installed for me. I used to hate the idea of awnings, but the thought about IR heat getting trapped clicked with me recently and suddenly the idea of awnings seemed brilliant.
Interior shades aren't nearly as effective as exterior. Once that sun gets through the window, it's already giving that next interior surface quite a bit of heat.
There are many styles of awning or other shading elements. You can have metal slats or what looks like a wood box that comes out horizontally over the window. I'm sure something could fit your house's aesthetic. And perhaps ask your wife what value she'd put on thermal comfort.
Looking for shading elements or shading strategies might get broader results than simply sheet metal or fabric awnings.