Not sure you are saying this but for the record GrapheneOS is more than just degoogled but also provides a way to use Google services. My understand is that it has many hardening items that LineageOS does not. Same goes for CalyxOS. Graphene is not the same as Calyx either.

Adding Aurora Store could be done on any of these OSs and you are right about that. It doesn't make sense to degoogle and then add a ton of cloud provider apps that track your every move. That said not every app is doing the same tracking and you can look at each app on a per app basis and make an evaluation.

To me, the broader question is do you need all this crap on your phone or can you access these things from a laptop that doesn't track your location every minute of the day.