What data does the reset phone sync with the old Google account?

Question

Google

I sold my last phone in the summer, before that I reset it through the settings to the factory state. Last month I looked at the "recently used devices" page, and there my old device was synchronized a few minutes ago. I changed my password and now I have two-step authorization. After that, again, almost every day, the phone is synchronized with the account. Access cannot be denied.
How is this possible? What is he synchronizing?

Answer 1

Can't close access

yes, of course

Answer 2

So they didn't drop it.