Nubia RedMagic USB C to 3.5mm 1/8 Inch Headphone and Charger Adapter, Dual USB C to Aux Audio Jack with PD Fast Charging Dongle Cable Cord for iPhone 17/16/15, Galaxy S25/S24/S23, Google Pixel 10/9

Ok no downstream facing ports or 3.5mm ports there. You probably want something like a "VR adapter" - like this: https://www.amazon.com/RedMagic-Headphone-Charger-Charging-Compatible/dp/B0DT6FRVKG Or a dock with a USB-C port capable of outputting video like this, plus a USB DAC: https://www.amazon.com/dp/B0B5H8TPF8 This is a good resource: https://dancharblog.wordpress.com/2023/10/19/power-display-through-single-usb-c-port-without-a-hub/