[HunterWare]

Huh, I use Google Maps daily too and have never had a popup since the first time I used it and picked "While using". I could have picked "Always", which worked too, but choose not to for reasons outlined in other posts here.

You can also easily turn off "Maps" tracking or limit it the same way if you choose.

I got to admit that I don't see the meat in this burger, so to speak.

[jeffbee]

If you go into privacy settings and try to disable the “system services” it will prompt you, twice, with a big scary warning about how nothing on your iPhone will ever work again.

[smaccona]

I can go into Settings -> Maps -> Location -> Never, and then when I use Apple Maps it says "Location Services is off" and can't figure out where I am. Is that different than what you are talking about?

[jeffbee]

Yes, that is different. Apple will still be collecting location data to "improve maps" and for other enumerated purposes.