Why do the microphone hole and pressure relief hole on the top of the REDMI Note 14 Pro+ 5G look out of round?

Both the microphone hole and the pressure relief hole are critical for the phone's performance. Different designs of the holes affect the resistance to dust or water ingress. As long as these holes function properly (the microphone picks up sound and the pressure relief hole balances internal pressure), the shape shouldn't be a cause for concern.
To ensure an elegant overall design, the REDMI Note 14 Pro+ 5G aligns the openings on the side of the middle frame along a horizontal line. The top microphone and pressure relief hole use an angled drilling design. On light-colored frames, the hole's sidewalls could be visible to the naked eye, but this does not mean the holes are not circular. This is a normal phenomenon, so please rest assured while using the device.