If humans disappear, in billions of years, what will prove our existence?

The age of the earth is 4.6 billion years, and dinosaurs have existed for 160 million years. The earliest time of human appearance is controversial. I wonder if you have thought about it. Are our wave of humans the only one? What would happen to the earth if humans on earth suddenly disappeared? How long will the evidence of human existence last?

A few hours after humans disappear, power plants around the world will fail one after another. The tap water will quickly flood the ground, and facilities that require personnel maintenance such as nuclear power plants will be paralyzed because no one is in charge, or even explode. The fire will continue to burn for several days. In just a few hours, the world has been in chaos. A few days after the disappearance of human beings, thousands of tons of toxic chemicals leaked, wanton pollution of this new world, pets at home, animals in zoos died one after another, nuclear radiation began to explode, nuclear radiation dust enveloped the world, the city was silent, the weather began to improve Well, the mice have a pretty good life. Thirty years after the disappearance of humans, because of the destruction of animals, houses on earth began to collapse, trees grew in living rooms, and seeds and dust made their homes in cities. 60 years after the disappearance of human beings, cities have become real jungles, birds have taken over offices, reinforced concrete is riddled with holes, and the human world has turned into ruins.

200 years after the disappearance of human beings, dams have begun to crumble, fish have grown big and long, and cities created by humans have been swallowed up by nature. But there are still some traces of human existence, such as the Great Wall and the pyramids. 25,000 years after the disappearance of human beings, a new round of ice age came to the earth. Most of the northern hemisphere was gradually covered by ice, and finally all evidence of human existence was buried, but the traces of human landings can still be seen on the moon.

Some people will also say that if humans suddenly become extinct, there will be a large number of fossils left on the earth, and these fossils can exist on the earth for billions of years or more. What do you think about this?