This sounds like a terrible waste of time and effort. Apple users do not want to be saved despite their cries. Their actions show you who they are.
Discussion
I switched back to Apple because of the poor geolocation support for navigation, and also the language support for Chinese, Japanese is horrible.
Also more emojis.
Speaking from experience with GrapheneOS.
I would never use a non Graphene OS android. I prefer Apple over Google.
I have no issues on Graphene with geo support and don't need chinese, agree it is clearly not as polished as iOS
Non-Graphene Android is also out of the question for me.