Google and personal privacy

https://myaccount.google.com/activitycontrols

 If you have not visited the above site/page at google you should. By default Google logs and stores every place you have been when interacting with google, every application run on your android phone, everything you have dictated or asked by voice (hey, google    and   dictation of emails, texts, etc.), every YouTube search AND videos watched and more.

You can not turn this collection off. Only Pause.

The site indicates the collections help Google make your experience better. The site indicates only you (and Google) can see the data in all of these collections. Only you and anyone who guesses your password/passphrase.Only you and anyone who resets your password/passphrase. Only you and anyone who uses your logged in sessions anywhere.

If you wish to turn any of these collections off  (Pause is the only available option) you will need to check every device you use to interact with Google.

To "Pause" move the slider to "Off"

THEN to remove all past history of data in these collections Click on MANAGE ACTIVITY.

Click on the "DELETE ACTIVITY by" link

Now select "All time"

Some may argue "I have nothing to hide" and this history of Google interactions may be useful.
If not, use the site to suit your personal privacy desires.
.
This information is what Google discloses.