In this kind of heat, we close all the indoor shades, curtains, and blinds.
Since our house sees full sun almost all day, that makes a big difference in how hot the house gets.
We do have AC but at those temperatures, it’s hard pressed to keep up.
I don't have a single curtain, shade or blind in the house, but massive numbers of windows. Glazed for maximum sun protection. We get privacy from outdoor plants and use of huge triple screens inside set at angles, then outdoor screens around the front deck to limit visibility. The back is all windows but dense foliage that was once neatly manicured gardens but which has now all reverted to nature. It's just another type of view, I tell myself, to avoid guilt at the vines taking over.
From the days when you could see the paths.