The scenario you describe, where a black hole is created from the destruction of an entire universe, is purely speculative and not currently supported by scientific evidence or theories. Our understanding of black holes is based on observations and theories within the framework of our own universe.
In general, when a black hole forms in our universe, it occurs through the gravitational collapse of a massive star. The matter and energy of the star become extremely compressed, creating a region of spacetime with a gravitational field so strong that nothing, not even light, can escape its gravitational pull. This region is what we call a black hole.
If we were to consider a hypothetical scenario where an entire universe collapses into a black hole, it is difficult to speculate on the fate of the matter within that universe. The laws of physics, as we currently understand them, break down at the singularity within a black hole. Therefore, we lack a comprehensive theory that can describe the behavior of matter in such extreme conditions.
It's worth mentioning that the concept of a universe being destroyed and collapsing into a black hole is purely speculative and not based on scientific evidence or established theories. Our understanding of the universe is continually evolving, and there is ongoing research to better comprehend its nature and behavior.