This is an interesting discussion. You mentioned imagining Google, Apple, or Tiktok being decentralized, but I think popular companies and applications will always be centralized. They can't afford or don't want to go against governments because of the possible loss of revenues. Sure if Tiktok was blocked, a new one like Ticktock can come and try to replace it. But they will have to start the userbase from scratch, and some might not even join again. The loss of the individual's algorithm hurts them, and the risk of this new application being blocked again can make users think twice of using it.