Question about Graphene OS.

Hi everyone. I'm making my first post to Lemmy now. I bought a Pixel 9A last month and have been on stock android.

I should have installed GrapheneOS without setting up a Google account, but I'm still not familiar with Linux or other systems, even though I know GrapheneOS is based on the Android system. I've been using an iPhone for almost 12 years now. I know how to protect my data/privacy from massive surveillance.

Now I now want to take full control of my pixel phone without Google Play store/service.

My concern is lack of phone screening feature on Graphene OS but I don't want to have any Google service on Graphene OS. How do you deal without it?

Thank you for your response in advance