Android

And no, a 7€ dongle is not a good experience, and not a premium thing. For that price, it’s also probably an analog dongle, which already requires the phone to have the extra hardware for the audio jack inside, just without the convenience of the audio jack.

Either you're satisfied with dirt cheap DAC in your dongle, or you're satisfied with the same dirt cheap DAC in most phones, or you require people to put actually good electronics in phones, which practically nobody's gonna use anyway. You can't be perfectly happy to listen to shit when it's from your phone, but suddenly dissatisfied with it when it's moved outside of the phone, you need to reevaluate whatever the fuck you're doing with your life.

it follows fairphone’s supposed ideals of reducing e-waste.

It doesn't, this logic is based on nothing. People an mass aren't clinging to their old somehow working headphones that they are using daily for the last 10 years. I'm sure such people exist, they are in a vanishing minority. And in the last decade when the push away from jack was happening, majority already switched to wireless. Which allowed us to have phones that have one less weak point.

(in fact, it’s easier to break a usb-c port due to daily headphone use, while I’ve never broken an audio jack, despite abusing some)

You might be an outlier. I worked part time fixing electronics back when we didn't have BT headphones, broken jack was a number one problem for any piece of electronics that had one. Granted, it was before usb-c so I can't compare, but what I can assure you, jack is unbelievably fragile, and unless it's premium quality (so not phones), you can't make it less so. It gets better for pro electronics, most of those are 6.3 so bigger and beefier.