I think people have had their views coloured by sci-fi. In practically every space sci-fi they're zipping about the galaxy like it's nothing. Firefly, Battlestar Galactica, Star Wars, Farscape, Stargate, Star Trek, The Expanse, whatever. In reality even going to the closest stars is a colossal undertaking. Never mind all the games where you're personally the one doing it.
Another thing about many of those sci-fi films, shows and games is that they show a galaxy full of different species with similar technology and motivations. The Universe is 13.7 billion years old, and complex life has been possible for at least a few billion years. It seems like it would be unlikely for two intelligent civilizations to emerge at roughly the same time (and by the scales of the Universe, a few million years would be practically simultaneous.