This is nonsense, you don't just need an "adapter" to convert a 3.5mm to USB-C. What you talking about is a DAC or external soundcard. Just because they can make them small doesn't make it an adapter and since the laptop clearly already has a DAC and amplifier since it has working speakers, it is silly to make me buy another, especially since the majority of external tiny DACs sounds like crap and are underpowered.