My argument, based on this thread alone, would be that Codium will always be... held back by its roots in open core project, with some amazing features (like remote editing) or plugins being unavailable. Codium developers do not "own" their core platform (they can't really fork it without breaking plugins), and they don't have much (if any) say in the future direction of it.
Given that it's not unreasonable to think that VS Code is not really that open, and a more desirable outcome would be for developers to support more open alternatives.