LineageOS isn’t entirely free from Google. It relies on AOSP, which is maintained by Google, and it suffers from the decisions that Google makes. For example, Google made a change in AOSP to require location services to be installed as a system package instead of a user package, something few users know how to do. The result is that users are less likely to use something privacy-protecting like Mozilla’s location services. Moreover, Google has reimplemented a lot of AOSP functionality in its Play Services and the industry now uses those Google APIs instead of the old AOSP ones, so loads of apps won’t even run on LineageOS.