Analytics Privacy Policy

Hi,

I have been using a simple privacy policy for my apps.
This policy is just a link on the play store web page.

Is anything else required for this to be “legal” by play store terms of service ?

I mainly collect usage data, some button clicks and timings.

My question is, am I required to have an in-app popup at start with an opt-out option, or is the play store privacy policy enough?