Graphene os gives more options. If your minimalist you can use the phone as-is without a Google account, it has all the basic apps you need. If you need more you can install f-droid and use Foss apps. And finally I’d you still want Google based apps, you can set up sandboxed Google Play and use it as a fully featured android phone, all while keeping granular permissions on the Google Play services, depending on what you need it for.