Hey @thesummerfire welcome to the board!
Unfortunately we can’t avoid doing the dongle dance here. Hypno isn’t capable of accepting video input through a straight USB connection only, a capture device is required, and you’ll need an OTG adapter to connect that to Hypno. So you’ll want to go:
Android USB-C-> HDMI adapter-> HDMI cable-> HDMI capture device-> OTG adapter-> Hypno