[nl]

This is an active USB-C to headphone dongle designed for phones: https://www.amazon.com.au/Stereo-Adapter-Hi-res-Headphone-Co...

It specifically mentioned Pixel 4 compatibility.

Yes, I think it might work on a PC too, but I've never tried that.

[seba_dos1]

Add a passive USB-C to A dongle and you can use stuff like this: https://www.amazon.com.au/EZONEDEAL-microphone-external-Exte...

Technically, this is more or less the same thing as what you linked to, just in a different form factor.

Or even this: https://www.alibaba.com/product-detail/5-1-Channel-USB-2-0_6...

Also same thing, but likely to have a crappier DAC.