Bosch Fridge is making a high-pitched whining sound, generally when the compressor is on

Here is a video of the sound:
https://drive.google.com/file/d/1o9Vkfu2lYcc8RDnxAjh2p4LYazjSTRDn/view?usp=sharing

800 Series French Door Bottom Mount Refrigerator 36” Easy clean stainless steel
Model Number (E-Nr): B21CT80SNS/02

A Bosch technician came, couldn’t reproduce the sound, and assumed it was the fan and said he’d come back to replace it

But I think the sound is too constant to be coming from a fan? Not sure. It’s a new fridge