I mean most of those vectors will converge on my home dot; with time data any vector intersecting with my home can tell a lot about my life. Additionally, is it anonymized per user (ie all my vectors are still a set just not identified as me) or each vector is an individual product unliked from all other vectors and user data.

https://www.apple.com/legal/privacy/data/en/apple-maps/

  > Additionally, when you use Maps to make a navigation or directions request, details about your route are sent to Apple, including:
  > [...]
  > A random identifier, which is created when you ask for directions and exists for the duration of your navigation session

> vectors will converge on my home dot

That’s just because your phone sends it, but your phone also has a list of “significant locations,” around which it could avoid sending data for a mile or less.