There are 200,000,000-600,000,000 stars in our galaxy, and another 200,000,000-800,000,000 galaxies in the universe.
The scale of the universe is vast, beyond fathomability for most people.
Those, 200,000,000-600,000,000 stars have trillions of planets, and out of those trillions of planets in our galaxy there are probably a 300,000-2,000,000 planets like ours that live in the habitable zone and have a star that isn't trying to kill them.
Out of those 300,000-2,000,000 planets, maybe 20,000 have an atmosphere, some will have already had a civilization, some will never get one, and some will have killed themselves millions or billions of years ago.
The closest known planet in a habitable zone that we can see thanks to the James Webb is over 300 years away at light speed. We don't have the technology to travel at light speed. We don't have the technology to get past 15-60km a second in space. What we would need to break the orbit of our own sun and get to Proxima Centauri.
Another civilization in our galaxy might have a way to either bend time and space, or travel at speeds faster than we can imagine.
They still have the physics and geometry problem of extreme distance, a planet that is moving within a star system that is moving with a galaxy that is constantly moving, and to find their way home.
Not saying it isn't happening, because I think it probably is. But it's not a Star-Trek or Star-Wars kind of space population.