When you do, your navigation data is shared with Google to improve the product.
This new pop-up prompt explains what’s happening in greater detail.
“As you navigate, Google collects details, such as GPS location and the route you took.
Instead, users will see the older list-view of instructions, and that’s all.
You won’t get voice instructions or turn-by-turn navigation.
you might read data here.
Something the companytalked aboutduring its annual Google IO developer conference earlier this year.