I created a google takeout and in that zip file I found some files containing a ton of data about me. It has logged every single page I visited while using the google search engine and chrome browser. It even logged every single time I opened an app on my old android phone. It even has VOICE RECORDINGS of me and a log of every time I used google assistant. This is just some of the data and I’m very sure there is even more data they have.
You can also use GPS location without any google services running, it just takes a bit longer to find your position when you first connect. OsmAnd or Organic maps from f-droid, which are actually superior apps to google maps in a lot of ways, particularly OsmAnd.
I had to use Satstat to reset the AGPS data as Lineage os just won’t refresh agps on its own.
Yeah Google Maps isn’t actually a map app. Its for navigation.