Earlier quoted context omitted.
This is true (iPhones, iPads, and plenty of Android phones these days), but can be mitigated by carrying a USB-C to 3.5 mm audio adapter in the pouch that contains the IEMs. I wish people didn't have to, but it's a straightforward solution that widely improves wired compatibility.
> ... that widely improves wired compatibility. "Wired compatibility" was ubiquitous before. It didn't have room to "improve". Removing the jack is what broke "wired compatibility". Needing a dongle for sth is not an "improved" form of using it, when you could have just used it without a dongle.
Due to forces beyond the individual's control, it's highly unlikely that audio jacks will once more become ubiquitous, so the second-best outcome is for wired headphone users to start carrying an adapter.