Fermi paradox applied to multiverse...
Multiverse isn't something I follow much even though I would say astronomy is a hobby like interest of mine, it's just too speculative to be all that interesting; but as I understand it other universes wouldn't necessarily have the same fundamental rules. Something like atomic forces being ever so slightly different from ours would result in a universe that probably wouldn't even form general elements so the Fermi paradox probably wouldn't really apply. Well not only that but the Fermi paradox asks why we haven't found other life yet, and for any life in another universe, that's definitely why we haven't found it... being in another universe and all.
There is an interesting podcast I listened to a while back with Edward Snowden and he talked about how alien life could easily use cosmic background noise to hide interstellar signals and the encryption would be so strong we'd never find it. It's also possible there is life out there and they have some kind of interstellar government (or federation perhaps) that has rules about avoiding contact with less advanced worlds like ours.
Then again one of the aspects of the Fermi paradox is that life can be common but just never lasts that long. Perhaps in nature, anytime a species evolves intelligence they end up eventually consuming all the resources on their planet or just don't last for various other reasons, maybe viruses. The way things are going on our world, it doesn't seem far fetched at all that our species may not last too long.