I have been an Android user for 13 years now. After using almost every Google service possible I am going down the privacy rabbit hole lately. Gmail -> Proton Mail, Chrome -> Firefox, Keep -> Notesnook, Google Search -> Kagi, …
I am currently using a Galaxy S23 with as few Google apps as possible (and focussing mainly on open-source apps). I am familiar with rooting (I was a CyanogenMod user back in the days), but today I want to use the phone without tinkering and problem solving. I also like to use a smartwatch and banking apps, so GrapheneOS is a no-go unfortunately.
So it is “Stock” Android (or Samsung’s Android ) vs. iOS for me. Is it better (in terms of privacy) to use an iPhone or stick with an Android phone with an system wide ad-/tracking Blocker (I use Adguard)? It seems there are more privacy-friendly/open-source apps on Android.
I think any Android version is better in terms of privacy than iphone. iOS is property and a lot closer and less customizable than android. If you are really concerned about privacy, my suggestion is not to use iphone.