Comment by rezonant

I don't get the sense that third party headphones don't work just fine with iPhone, other than a seeming indication that iPhone users seem to think normal Bluetooth doesn't work well, which might indicate Apple has either not invested in their standard Bluetooth stack or at worst, actively degraded it.

But I'm doubtful of this, it seems more likely that some Apple users have an outdated view of how reliable standard Bluetooth actually are, even when paired with their iPhones.