I have a similar issue with an "Elikliv" branded USB/HDMI capture device. It's reported as working in Linux, Mac and Windows. On Windows 10 without drivers. In Mac in OBS 22.0.3 ....
Hey, the elikliv hd60 can do YUY2, I know the thread is old, but it poped on google search so its relevant
I was having this problem with my girl's computer: In my computer it works flawlesly but on only MJPEG shows. After some testing I found the problem to be the cable. Not all USB cables are equal, for the elikliv HD60 to show YUY2 format you have to use a cable certified for 3.1 specs - 10Gpbs speeds- (Maybe 3.0 works too?). The cable suplied by the manufacturer works like a charm on macOS, Linux and Win 10.
I tested all the USB-C to USB-A cables I have at home and none worked to show YUY as an option, only an USB-C to USB-C thunderbolt worked, and the usb that came in the box.