Even with heat-insulating Low-E glass, the west side gets hot.

Today, I received a call from a former customer, Mr. T.
The western sun coming through the not so big window is hot, so I installed a honeycomb screen.
He said he wanted to add it.
In our designs, we almost never have large windows on the west or east facing sides.
Even if there are any, would they have shutters or external blinds?
In the first place, there are conditions such as buildings or other objects on the west side that prevent the setting sun from entering.
And of course, the three walls other than the south side are made of highly reflective Low-E insulation.
I use glass.
The problem is that you may still feel hot.
Most home builders do not build eaves on the south side, but rather have large windows on the west side.
On top of that, many people say, "It's fine because it's a low-E heat shield."
Yes, there are. And only in those houses are the next generation energy conservation standards.
Because it is filled with air, the heat that enters is well preserved and ventilation is also provided.
The windows are often not even arranged as planned. As a result, it's extremely hot.
It has become a home.
Is that not the case in your home?