Completely disagree. Dongle dacs are noisy, easy to break, etc. The dacs in phones were fine, easily transparent against whatever else is external and bulky. If you’re worried about the cable, use headphones with replaceable cables.
Having a jack also doesn’t prevent any of the other options. No reason not to include it.
Yeah you always have. They’ve been screwing modern graphics features to the old dog for years and hoping it’ll continue to work. There’s some serious limitations in it that another engine would be able to work through for a game like this. Seamless planet travel for one, and less abrupt loading.