@GoanGeek.. That will kill the video part if it. Need to shoot two people in dialogue sitting scross in stage like setting before the camera. So one good mic in the middle. Wish could place buds in the middle but they won't work unless they sense skin of the ear 👂.
With the S21 Ultra wide angle, how far would you want the phone? Other options could be a wired microphone or entirely recording audio separately and then post processing. It would be too much work though.
I do like the idea of getting two buds to work with one phone. That would be epic.