Will the stars in different constellations overlap? Why?

Constellations are divided according to the positions of the stars seen on the earth, and the zodiac is also artificially divided.

In fact, the stars in a constellation may be separated by millions of light years. Upstairs is right. The stars are always in motion, and so is the earth. It not only rotates and revolves, but also moves with the solar system in the Milky Way. It seems normal for the stars to overlap on the earth.