But it turns out it is "Coil Whine" and that is common among Lenovo laptops:
https://www.google.com/search?q=coil+whine+lenovo
I cannot find any info on how to get rid of it.
So I will try to return the laptop. If I can't return it (Already removed Windows and replaced it with Linux), it would be a 100% wasted investment.
Since I otherwise liked it, I wonder what replacement to buy.
Are any Lenovo models safe from Coil Whine?