As I understand it, Volvo's relationship with Luminar broke down, not that there was an obvious problem with the technology itself.
https://www.thedrive.com/news/volvo-ex90s-lidar-sensor-will-...
https://insideevs.com/news/773202/volvo-ex90-software-issues...
-- Volvo is upgrading the central computer on all 2025 EX90s for free.
-- The company has spent over a year trying to squash software bugs in the EX90, but owners are still reporting serious issues and glitches.
-- One owner told InsideEVs that her EX90 has been a "dumpster fire inside a train wreck."> One owner told InsideEVs that her EX90 has been a "dumpster fire inside a train wreck."
Quite the anecdote, surely Tesla has never had an owner say that!