They spun backing out of China as something they did in the interest of free speech, but it was more a response to them getting hacked by the CCP (it's still not clear what was stolen, but something big happened).

More recently they were trying to re-enter the space with a search engine designed to fully comply with the CCP's censorship laws: https://en.wikipedia.org/wiki/Dragonfly_(search_engine)

It's unclear what caused that to get shut down, but its leak and subsequent public pressure was probably a factor.