Yeah GrapheneOS is open source bro. Probably doesn’t have full compatibility with your phone if I had to guess. That’s really not a like-for-like comparison to iOS.

Really depends which spin of Android you have. I have a Nothing Phone 2 and the OS is arguably more polished than on my SO’s iPhone 14, which frequently has bugs, lag, and crashes. You can’t really generalise about Android when there are so many versions of it.

That being said I’ll probably be looking into Linux phones in the next few years because I’m tired of corporations trying to control my devices.