It's very amazing seeing gravitational lensing in the first JWST image. Notice the elongated, distorted distant galaxies near the middle -- they're being distorted by a cluster of nearby galaxies bending the light as it comes to us.
This image has a field of view of approximately a grain of sand held at arm's length; the universe looks kind of like this in every direction, a massive soup of galaxies, each with billions (or in some cases trillions) of stars.
There's an image of Andromeda, the nearest galaxy, that's so high resolution that you can zoom in and see individual stars. https://esahubble.org/images/heic1502a/zoomable/ Look at that, and then come back and look at this again. Each of those little smudges is a galaxy with a similar number of stars.
How sure can you be that there isn't life on any of those star systems?