The Poseidon’s Children series by Alastair Reynolds (the first is Blue Remembered Earth). It’s not as dark as the Revelation Space books, more of a hopeful future. Africa is ascendant, AI is art. Concepts like pan-spermia and uplift are post religious life philosophies that people dedicate themselves to and a character who is a combination of Elon Musk and the Pizza Grandma from Stephen Universe dies at the beginning of the series - and is a main character. Revelation Space seems to be more popular, but I consider it Reynolds’ Magnum Opus.