Likely just a driver issue.
I actually had the opposite situation with Ubuntu 20.04 on my desktop, got a lot less noise from my mic port under Ubuntu for some reason.
I actually had the opposite situation with Ubuntu 20.04 on my desktop, got a lot less noise from my mic port under Ubuntu for some reason.
Oh. Just a driver issue on Linux. Well then, problem solved.
Solutions are calling your manufacturer and filing a support request, or voting with your wallet and picking another manufacturer next time.
I have been looking for one since ages.
I had a Matebook X Pro and it worked really well with Ubuntu but the battery life was terrible in Linux. Maybe it's something that's been fixed or can be tweaked.