It's also worth noting that the types of star or planet available don't matter much to meatbags either once they have learned to leave their homeworld. Orbital or even deep space habitats are much more efficient and easier to construct than livable planets. As long as there is a reasonable energy source nearby, you can have any environment you like in a spinning cylinder.

> and that interstellar voyages will be undertaken by those intelligences

Probably, although I would much prefer if we humans became hybrids of some sort (maybe uploaded and virtualized, or extensively augmented) instead of just falling by the wayside. It would be sad if our only job in cosmic history turns out to be giving birth to the real main characters of the story.