Did they add that option after admitting they got caught for purposely slowing down iphones. They are a corrupt company. I doubt that button makes it run as fast as Linux. From my experience many people who use apple are normies. They know wouldn't know how to install an operating system. So that button may say it runs their OS faster but doubt the could tell the difference.
In the past they forced you to use iphone software to download mp3s and photos. I checked on chatgpt and they said they changed it recently. My experience was from 2018.
I downloaded mp3s because I refuse to give my money to a corrupt company like Spotify who censored many truthers.
I don't see anything that is worth paying the ridiculous amounts of money apple wants. Maybe the convenience of them doing everything for you but I like having control of my own software and hardware. I find I can do that with Linux more than apple or windows.