Well, yeah, Apple's Maps.app wasn't good enough when it launched (it's solid now though). That feels like a separate thing from white labeling and lock-in. Obviously they would have to switch to something of similar or better quality or users will be upset.

But it's a whole lot easier to switch from Gemini to Claude or Gemini to a hypothetical good proprietary LLM if it's white label instead of "iOS with Gemini"