It's been many years since I read it but the 'explanation' in Lee Smolin's 'The Life of the Cosmos' sounds the most convincing to me.

I'm the book, as far as I understood it, he suggests that theory of evolution applies on the biggest scales too. New universes form when a black hole collapses. Our Universe is just one of the universes that all have slightly changed values of the universal constants, like the way evolution works. There are many universal or physical constants in science, some of the most widely recognized being the speed of light in vacuum c, the gravitational constant G, the Planck constant h, the electric constant ε0, and the elementary charge e.

There is a very narrow range of these constants where 'normal stuff' of the universe like formation of matter can happen and heat death of the universe can be avoided. We just happen to be in the right universe with the perfectly balanced constants, in the right corner of it, at optimal distance to an optimally sized star, tilted at an optimal angle, with a moon at the right distance to help evolve life capable of developing a fediverse where we can mull this over.

Evolution, nothing special about it.