Even though i think your tone was unfriendly, which is rare and frowned upon, you still had interesting points and got my upvote. Someone else might have the guidelines handy.
Assume a positve intent, was a valuable lesson for me.
I am not confused at all. I can certainly just run MacOS and run everything else Android. BUT that takes away from one of the main value propositions of Apple ecosystem - integration. So to get the full benefit, I migrate my phone to iPhone and that is where it begins.
Your argument is basically "macOS doesn't lock up your data but it integrates so well with iOS which means I can't help buying an iPhone. And now I have buyer's remorse because iOS DOES lock up my data". You don't need to use these integrations and you don't need to buy an iphone if you don't like your data taken hostage.
MacOS doesn't take your data hostage, you can exfilrate everything to anywhere you want .
Hell, all macs have a special boot mode that turn them into usb hard drives so you can access everything from another computer.
The iOS is a walled garden but you were misinformed if you think macos locks you into its app store or locks your data away.
Even if you feel like that might change one day, it doesn't justify lying about the present.