The New World by Chris Adrian

After a sudden death, a widow discovers her husband secretly arranged for a cultish tech outfit to preserve his head for future revival, a process that may erase the memories of their life together. As she struggles with grief and betrayal, he awakens in a disorienting orientation space where upbeat handlers coax him to let go of the past. Their alternating journeys explore love, consent, identity, and what remains of a person when memory is stripped away.

Purchase from Bookshop.org