Honest question: why?
Type C headphones could easily be a thing (and are already). Then you just have the one port, which to me seems better.
Transparency: I’m someone who just uses Bluetooth headphones and I love them, so I have no real horse in this race. I just like not catching a cord on doorknobs anymore, lol
Best thing to do is use an external monitor. You can connect the phone via whatever USB interface it has - there are cheap USB to HDMI adapters on Amazon which should do the trick.