Secondly, talk about my personal opinion.
As shown above, the position marked by the blue line.
The location where you live is opposite the corner of Building 4, which is called "wall knife" in geomantic omen. It will have a negative impact on personal fortune and health, and even cause accidents and lotus flowers in severe cases. Therefore, the residents on the third floor should be people who have a little concept of Feng Shui or have a fortune-teller. Putting a mirror on the window is to "reflect" Shaqi and reduce or eliminate its influence on yourself.
If your home is also facing the corner of Building 4, then this problem also exists. Of course, if building 4 is lower than your floor (for example, you are on the fifth floor, but building 4 has only the fourth floor), then this suffocation has no effect on you.
Others, such as trash cans and switch rooms, are difficult to affect your position on the fifth floor because of the limited height.
The above is my personal opinion for your reference.