If I remember correctly apple wanted Turn by Turn navigation while also not adding any ads to the app (essentially be their maps but no revenue).

The actual Google maps app was released and had TBT before Apple Maps even came out. The previous/original “Maps” app was using Google map tiles but was written in-house by Apple. Whatever its feature lacks were is on Apple, and Google had already delivered that feature to customers, without Apple needing to spend all that money.