Kind of funny. Long story short, my headphones broke and since this is my first iPhone after 13 years on Android, I just had to try it out. My initial thought was that the pixel didn’t have a dac and neither did the USB hub, but it works on the iPhone and I’m a bit surprised 😂👏
pixel have less USB C abilities than other androids. Samsung's can connect to docks like this and use external displays, ethernet, even SD cards and such. I believe someone even connected a hard drive to a powered dock and it worked on the Samsung.
I've done this same thing with my Samsung and a USB a to USB C adapter, and a USB C to headphone adapter. works fine to listen and charge if needed too.