If a planet with lower life is found in the universe, will humans immigrate and occupy this planet?

At present, mankind has not found a more livable planet than the earth, but this planet, which is as suitable for human habitation as the earth, is likely to be discovered in the future exploration of mankind.

Some people say that Mars is more suitable for human habitation, but in fact, the conditions of Mars are not completely suitable for human habitation, but it has great potential.

Leaving the earth for other planets is just a primitive idea for people. At present, it is more realistic to live in a giant spaceship on other planets, because the first gravity, atmospheric composition and temperature are controllable, the cost is relatively low, and the spaceship is more convenient to move.