Buzzing Noise while recording Quicktime/Game Capture Device

Does anyone encounter this issue? As it says in the title...

Please check the embedded video for reference.

The first iPad Pro M1 11-inch got the same issue (it even has the same issue when using the screen recording function within the device. I had it replaced. Now, the replacement also has the same issue. Something wrong with M1 iPad Pro?

https://youtu.be/k5aDFCAA7Kw

As for the screen recording inside the device. I will try it later and give an update if I encounter it again.

Thanks!