Updates can’t really break anything, and if something would go wrong, I can simply boot on the previous image, which will still be there. They can also happen in the background, such that I don’t even know it’s updating. It just happens and never bothers me.
What’s even more interesting is that you can rebase on another base image without having to worry. If I don’t like it, I can just go back to the previous image. With ublue, you can even customize your own OS image.
I believe modern Android uses a similar concept. They use two partitions, and install an update to the other image while your phone is running normally. Then all you need to do is reboot, and you’ll be on the new boot image.