Has anyone noticed intermittent high frequency noises coming from the brake pedal?

Apparently this is due to the new e-brake boost function and this has become a big issue here in Seoul.
Most new RRs have this noise and due to it's high frequency nature, some people car hear it while some do not.

There is yet to be a fix to this problem here, but when you hear that noise coming from the brakes,
you can lift the brake pedal towards you and that noise will disappear temporarily.

Please let us know if you have the same problem and if there is a solution to this.
Thanks!